Variable-width application nozzle and application system

Abstract

The invention relates to a variable-width application nozzle (2) for applying a medium (M), comprising: a nozzle unit (19) having a nozzle opening (22); a nozzle slide (41, 55) which is mounted so as to be linearly displaceable on the nozzle unit (19) and is arranged outside the nozzle opening (22); an actuating element (47, 59) for linearly displacing the nozzle slide (41, 55) relative to the nozzle unit (19); and a sliding and sealing element (44, 56) attached to the nozzle slide (41, 55), wherein the actuating element (47, 59) is designed to move the nozzle slide (41, 55) from an open position (P1), in which the nozzle slide (41, 55) completely clears the nozzle opening (22), into a closed position (P2), in which the nozzle slide (41, 55) at least partially closes the nozzle opening (22), and vice versa, and wherein, during operation of the variable-width application nozzle (2), the nozzle slide (41, 55), by means of the sliding and sealing element (44, 56), slides along a side surface (17, 18) of a component (14) to which the medium (M) is to be applied, such that the nozzle slide (41, 55) follows a component thickness (d14) of the component (14), as a result of which a nozzle width (b22) of the application nozzle (2) automatically adapts to the component thickness (d14).

Description

[0001] ViscoTec Pump and Dosing Technology GmbH

[0002] 1. WIDTH-VARIABLE APPLICATION NOZZLE AND APPLICATION SYSTEM

[0003] The present invention relates to a width-variable application nozzle for applying a medium and an application system for applying the medium.

[0004] Dispensing or application systems can be used to apply a medium, such as an adhesive or sealant, to components in a very thin layer. Particularly in the aerospace industry, such components are typically made of carbon fiber-reinforced composites. These components have milled edges that need to be sealed after milling. However, these edges are usually not straight and, due to the flexibility of the components, have limited dimensional stability. Furthermore, depending on the fiber configuration, the component thickness varies across its cross-sectional area. Therefore, the edges present a complex geometry in terms of both the path to be followed and the varying component thickness.

[0005] Against this background, one object of the present invention is to provide an improved application nozzle.

[0006] Accordingly, a variable-width dispensing nozzle for applying a medium is proposed. The variable-width dispensing nozzle comprises a nozzle unit with a nozzle opening, a nozzle slide mounted linearly displaceable on the nozzle unit and arranged outside the nozzle opening, and an actuating element for linearly displacing the nozzle slide relative to the nozzle unit. The actuating element is configured to move the nozzle slide from an open position, in which the nozzle slide completely exposes the nozzle opening. ViscoTec Pumps and Dosing Technology GmbH

[0007] 2 to move into a closed position in which the nozzle slide at least partially closes the nozzle opening, and vice versa.

[0008] A particularly preferred variable-width application nozzle for applying a medium is proposed, comprising a nozzle unit with a nozzle opening, a nozzle slide mounted linearly displaceable on the nozzle unit and arranged outside the nozzle opening, an actuating element for linearly displacing the nozzle slide relative to the nozzle unit, and a sliding and sealing element attached to the nozzle slide, wherein the actuating element is configured to move the nozzle slide from an open position, in which the nozzle slide completely exposes the nozzle opening, to a closed position, in which the nozzle slide at least partially closes the nozzle opening, and vice versa, and wherein, during operation of the variable-width application nozzle, the nozzle slide glides on a side surface of a component to be treated with the medium by means of the sliding and sealing element.so that the nozzle slide follows the thickness of the component, whereby the nozzle width of the application nozzle automatically adapts to the component thickness.

[0009] Because the actuator can actively move the nozzle carriage from the open position to the closed position and vice versa, it is possible to implement a variable nozzle width for the variable-width application nozzle. This allows the variable-width application nozzle to be adapted to varying component thicknesses on which the medium is to be applied.

[0010] Accordingly, a "width-variable" dispensing nozzle is understood to be a dispensing nozzle in which the nozzle width can be adjusted or set. In other words, the nozzle width can be changed as desired. For this purpose, the width-variable dispensing nozzle has an actuating element. The actuating element is a double-acting actuator. "Double-acting - ViscoTec Pumps and Dosing Technology GmbH

[0011] In this context, "3 kend" means that the actuating element can move the nozzle slide in two opposite directions. The actuating element can have a double-acting piston to which the nozzle slide is coupled. The actuating element is preferably a pneumatic actuating element. The actuating element can be a pneumatic cylinder.

[0012] The nozzle unit can be block-shaped. The medium to be applied is conveyed through the nozzle unit to the nozzle opening. The nozzle unit can be a single piece or multi-piece. Preferably, the nozzle unit is multi-piece. In this case, the nozzle unit can have a nozzle body and an interchangeable nozzle insert. Preferably, the nozzle insert has the nozzle opening. If the nozzle unit is a single piece, the nozzle opening is provided directly on the nozzle unit. The variable-width application nozzle has at least one nozzle slide. However, two such nozzle slides, in particular a first nozzle slide and a second nozzle slide, are particularly preferred.

[0013] The variable-width dispensing nozzle can alternatively have exactly one nozzle slide. In this case, instead of a second nozzle slide, for example, a fixed stop or a fixed stop element can be provided, with which the variable-width dispensing nozzle rests against a side surface of the component to be treated with the medium and slides on the side surface. In this case, only the single nozzle slide moves. As previously stated, the dispensing nozzle preferably has exactly two nozzle slides. However, the following discussion focuses on only one nozzle slide, since the variable-width dispensing nozzle can also be implemented with exactly one nozzle slide.

[0014] The nozzle carriage can be moved in a first direction of movement using the actuating element, in order to move the nozzle carriage from the open position into the ViscoTec Pumpen- u. Dosiertechnik GmbH.

[0015] 4

[0016] The nozzle carriage can be moved from the closed position to the open position. Conversely, the actuator can move the nozzle carriage in a second direction of movement, opposite to the first direction of movement. Using the nozzle carriage mechanism described above, the nozzle width of the variable-width application nozzle can be actively and continuously adjusted. For example, the nozzle width can range from 5 mm to 30 mm. However, the nozzle width can also be greater than 30 mm. For example, the variable-width application nozzle can be moved to the open position to perform a rinsing process in which a predetermined quantity of the medium is dosed into, for example, a waste container. Furthermore, the nozzle opening can be completely closed in the closed position to prevent atmospheric oxygen from coming into contact with the medium.

[0017] During operation of the variable-width dispensing nozzle, the nozzle carriage, particularly with the aid of a sliding and sealing element attached to it, applies a contact force to the side surface of the component. The magnitude of this contact force can be adjusted using the adjusting element. If the component thickness, and thus the nozzle width, changes during operation of the variable-width dispensing nozzle, the contact force ensures that the nozzle carriage, and especially the sliding and sealing element, remains in contact with the side surface of the component throughout the process. The nozzle carriage follows the component thickness, thereby automatically adjusting the nozzle width to the component thickness.

[0018] If the component thickness increases, for example, the nozzle carriage moves against the contact force along the second direction of movement towards the open position, thus increasing the nozzle width. If the component thickness decreases again, the nozzle carriage moves along the first direction of movement towards the closed position, thus decreasing the nozzle width. The nozzle width can correspond to the component thickness. ViscoTec Pumps and Dosing Technology GmbH

[0019] 5

[0020] The nozzle width is therefore preferably not actively adjusted, but rather adapts passively, independently or automatically, to the component thickness. This can be achieved by ensuring that the actuating element always applies the contact force to the component.

[0021] The nozzle slide is preferably arranged in front of the nozzle opening and can be moved linearly along the nozzle unit such that it either partially covers or at least partially uncovers the nozzle opening. The nozzle slide, particularly with the aid of the sliding and sealing element, contacts the component at its side surface. The actuating element, by means of the contact force, provides a preload on the nozzle slide against the component. Lateral clamping of the component is adjustable via the contact force generated by the actuating element.

[0022] The nozzle slide automatically adjusts to fluctuating component thicknesses through preload and contact force, without requiring active control of the actuator. While moving the actuator from the open to the closed position can be actively controlled, the actual adjustment to changing component thickness preferably occurs passively through the contact force.

[0023] As mentioned previously, the actuating element is double-acting and can move its piston in both opposite directions. This makes it possible to move the nozzle slide from the open position to the closed position and vice versa. Preferably, the nozzle slide can be moved between the open and closed positions into any number of intermediate positions. In particular, this allows the nozzle width of the variable-width dispensing nozzle to be continuously adjusted. ViscoTec Pumps and Dispensing Technology GmbH

[0024] 6

[0025] In the open position, the nozzle slide is preferably positioned next to the nozzle opening, so that it does not obstruct the opening at all. In the closed position, the nozzle slide obstructs the opening at least partially. This means that the nozzle width is smaller in the closed position than in the open position. In the closed position, the nozzle slide can also completely close the nozzle opening. This has the advantage that the nozzle opening can be completely sealed. This allows, for example, the medium to be protected from atmospheric oxygen.

[0026] According to one embodiment, the variable-width application nozzle has a first nozzle slide to which a first actuating element is assigned, and a second nozzle slide to which a second actuating element is assigned, wherein the first actuating element and the second actuating element are configured to move the first nozzle slide and the second nozzle slide from the open position to the closed position and vice versa.

[0027] In particular, the first and second nozzle slides can be moved independently of each other by means of the first and second actuating elements. The nozzle slides can, for example, be moved in opposite or the same direction. Preferably, the first and second nozzle slides are identical in construction and arranged in mirror image. Both the first and second nozzle slides are mounted on the nozzle unit so as to be linearly displaceable. Accordingly, a variable-width application nozzle for applying a medium is particularly preferred.The variable-width application nozzle comprises a nozzle unit with a nozzle opening, a first nozzle slide mounted linearly displaceable on the nozzle unit and arranged outside the nozzle opening, a second nozzle slide mounted linearly displaceable on the nozzle unit and arranged outside the nozzle opening, a first actuating element for linearly displacing the first nozzle slide relative to the nozzle unit, and a second actuating element. ViscoTec Pumpen- u. Dosiertechnik GmbH.

[0028] 7. A device for linearly displacing the second nozzle slide relative to the nozzle unit, wherein the first actuating element is configured to move the first nozzle slide from an open position, in which the first nozzle slide completely opens the nozzle opening, to a closed position, in which the first nozzle slide at least partially closes the nozzle opening, and vice versa, and wherein the second actuating element is configured to move the second nozzle slide from an open position, in which the second nozzle slide completely opens the nozzle opening, to a closed position, in which the second nozzle slide at least partially closes the nozzle opening, and vice versa. The component is then clamped, in particular, between the first nozzle slide and the second nozzle slide. The component does not need to be positioned centrally between the nozzle slides.In other words, off-center positioning of the nozzle slides is possible. This is possible because the actuators, and therefore the nozzle slides, can operate independently of each other.

[0029] According to another embodiment, the first actuating element and the second actuating element are configured to move the first nozzle slide and the second nozzle slide in opposite or the same direction.

[0030] This makes it possible, for example, to move the first and second nozzle slides simultaneously into the open position, thus fully opening the nozzle. It is also possible to move the first and second nozzle slides simultaneously into the closed position to completely close the nozzle opening. Furthermore, by moving the nozzle slides in the same direction, an off-center positioning of the nozzle slides is possible.

[0031] According to another embodiment, the nozzle opening is slot-shaped. ViscoTec Pumps and Dosing Technology GmbH

[0032] 8

[0033] In particular, the nozzle opening is rectangular with rounded corners. However, the nozzle opening can also have any other geometry. For example, the nozzle opening can be oval or trapezoidal.

[0034] According to another embodiment, the nozzle unit has a guide rail on which the nozzle slide is mounted in a linearly displaceable manner, with the nozzle slide encompassing the guide rail.

[0035] Preferably, the nozzle unit has a first guide rail and a second guide rail into which a first gripping section and a second gripping section of the respective nozzle slide engage in a form-fitting manner. The first nozzle slide and the second nozzle slide are thus preferably guided linearly on the guide rails by means of their gripping sections. Both the first nozzle slide and the second nozzle slide are guided linearly on the same guide rails. The guide rail(s) are preferably integrally formed with the nozzle body. Preferably, the nozzle slide engages the guide rail in a form-fitting manner. A form-fitting connection is created by an interlocking or overlapping of two components, in this case, the nozzle slide and the guide rail.

[0036] According to a further embodiment, the variable-width application nozzle has a sliding and sealing element attached to the nozzle carriage, with the aid of which the nozzle carriage slides on a side surface of a component to be treated with the medium during operation of the variable-width application nozzle.

[0037] The sliding and sealing element is preferably replaceable. In particular, the sliding and sealing element is spring-loaded against the nozzle unit, especially the nozzle body, by means of pressure pieces attached to the respective nozzle slide. When the nozzle slides move, the sliding and sealing elements then slide on the nozzle unit, especially on the nozzle body. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0038] 9 nozzle bodies. In particular, a first sliding and sealing element is assigned to the first nozzle slide. The first sliding and sealing element can be part of the first nozzle slide. In other words, the first nozzle slide can be multi-part. Accordingly, a second sliding and sealing element is assigned to the second nozzle slide. The second sliding and sealing element can be part of the second nozzle slide. In other words, the second nozzle slide can be multi-part. The sliding and sealing elements are preferably plastic components, especially disposable components. The contact force is applied to the side surfaces of the component by means of the sliding and sealing elements. Furthermore, the sliding and sealing elements seal the nozzle opening in the closed position. The sliding and sealing elements are spring-loaded against the nozzle unit, especially against the nozzle body, by means of the pressure pieces.The sliding and sealing elements can slide at least partially and / or temporarily on the nozzle insert to open or close the nozzle opening.

[0039] According to another embodiment, the variable-width application nozzle has a contact element attached to the nozzle unit, with the help of which the nozzle unit slides on an end face of the component during operation of the variable-width application nozzle, the contact element defining a layer thickness of the medium on the end face.

[0040] In particular, the contact element precedes the variable-width dispensing nozzle along the end face of the nozzle opening in one application direction. The contact element projects beyond the nozzle opening. The distance between the line of contact of the contact element with the end face and the nozzle opening defines the layer thickness. In other words, the nozzle opening is set back from the contact element by the layer thickness. The contact element is replaceable, allowing for quick and easy replacement when worn. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0041] For example, part 10 can be made of a ceramic material or a chrome-plated steel alloy. The contact element presses the variable-width application nozzle against the end face of the component with a specific pressure.

[0042] According to a further embodiment, the nozzle unit has a nozzle body on which the nozzle slide is linearly displaceable and a nozzle insert arranged within the nozzle body, wherein the nozzle insert has the nozzle opening.

[0043] As mentioned previously, the nozzle insert is preferably replaceable. The nozzle insert can be a plastic component, in particular an injection-molded plastic part or a 3D-printed part. The nozzle insert can be a disposable component. The nozzle body has, in particular, a receiving area into which the nozzle insert can be inserted. If the nozzle unit does not have a nozzle insert, the nozzle body alone constitutes the nozzle unit. In this case, the nozzle opening is provided directly on the nozzle unit or on the nozzle body.

[0044] According to another embodiment, the nozzle insert has a distribution contour for evenly distributing the medium onto the nozzle opening.

[0045] The distribution contour can, for example, be conical or frustoconical, at least in sections. The distribution contour is positioned upstream of the nozzle opening. In particular, the distribution contour can have a geometry that positively influences the fill level of the nozzle opening.

[0046] According to another embodiment, the variable-width dispensing nozzle has a displacement sensor for measuring the travel distance of the nozzle carriage. ViscoTec Pumps and Dispensing Technology GmbH

[0047] 11

[0048] Specifically, a first displacement sensor is assigned to the first actuator and a second displacement sensor to the second actuator. The displacement sensors are mounted on the actuators. Using these sensors, the travel of the actuator pistons, and thus also the travel of the first and second nozzle slides, can be measured. This allows the current component thickness and nozzle width to be determined in real time. This determined component thickness, in conjunction with the desired layer thickness of the medium and the travel speed of the variable-width application nozzle, forms the basis for the metering speed of an application system with a variable-width application nozzle, which will be explained later.It is therefore possible, for example, to ensure a constant layer thickness of the medium on the end face of the component by adjusting the traverse speed and / or by changing the volume flow rate of the applied medium.

[0049] Furthermore, an application system for applying a medium is proposed. The application system comprises a first progressive cavity pump for metering a first component of the medium, a second progressive cavity pump for metering a second component of the medium, a mixing unit (in particular a static unit) for mixing the first and second components to form the medium, and a variable-width application nozzle, in particular a variable-width application nozzle as previously described, wherein a nozzle width of the variable-width application nozzle is adjustable during application of the medium.

[0050] An eccentric screw pump preferably comprises a stator housed in a pump casing, which has an elastically deformable elastomer section with a central opening. The opening preferably comprises a helical or spiral-shaped inner contour. A rotatable rotor is preferably provided in the stator, which corresponds to the elastomer section. ViscoTec Pumps and Dosing Technology GmbH

[0051] 12. The rotor comprises a spiral or helical outer contour. It can be driven via a drive shaft by a drive element, in particular an electric motor.

[0052] The drive shaft can be rigidly connected to the rotor using a flexible shaft, flex shaft, or cardan shaft. As the rotor rotates, the respective component is conveyed away from the drive shaft in one direction of flow by the progressive cavity pump, following the endless piston principle, through interaction with the elastomer part of the stator. The delivery volume depends on the rotational speed, size, pitch, and geometry of the rotor.

[0053] The first progressive cavity pump is suitable for dosing the first component. The second progressive cavity pump is suitable for dosing the second component. The flow rates of the two components can differ. The two progressive cavity pumps are mounted on a common flow block. The pumps can be positioned in a V-shape relative to each other. The components can be liquid or pasty. Furthermore, one of the components can also be a solid, particularly a filler, or contain a solid.

[0054] The components and the medium are primarily fluids. The term "fluid" refers primarily to a flowable material in the broadest sense, meaning not only liquid or pasty, but also granular, such as hollow glass or plastic spheres, or any mixture, including those inhomogeneous in grain size and / or material. The components can also be pairs of any different fluids, for example, containing liquid and granular components. ViscoTec Pumps and Dosing Technology GmbH

[0055] 13

[0056] In this context, a "static mixing unit" is understood to be a mixing unit that has no moving parts and does not rotate. Such a static mixing unit, in particular, comprises mixing elements or mixing bodies, whereby the two components are mixed by multiple passes as they are conveyed through the mixing unit. Alternatively, the mixing unit can also be an active mixing unit. In this context, an "active mixing unit" is understood to be a moving mixing unit. For example, the mixing unit can rotate in this case.

[0057] Preferably, a support pipe is mounted on the flow block. The support pipe has a tubular mixing section in which the mixing unit is located. The two components are fed to the mixing unit separately. In the mixing unit, the two components are mixed to form the medium. A temperature and pressure sensor can be mounted on the support pipe to detect the temperature and dosing pressure of the medium. Furthermore, each progressive cavity pump can be assigned an additional pressure sensor to detect the respective dosing pressure of the first and second components.

[0058] According to one embodiment, the nozzle width is infinitely adjustable.

[0059] In particular, the nozzle width is continuously adjustable between the open and closed positions. This allows the nozzle width to adapt continuously to changes in the component's thickness. This adaptation preferably occurs passively, as the sliding and sealing elements of the two nozzle slides glide along the component's side surfaces. The two adjusting elements apply the aforementioned contact forces to these side surfaces. If the component thickness changes, the nozzle slides move towards or away from each other. ViscoTec Pumps and Dosing Technology GmbH

[0060] If 14 slides move away from each other, this movement occurs against the contact force generated by the actuating elements.

[0061] According to another embodiment, the nozzle width automatically adjusts to the thickness of the component to be treated with the medium during the application of the medium.

[0062] As mentioned previously, this adjustment preferably occurs passively. "Passive" in this context means, in particular, that the two actuators are not actively controlled to follow the component thickness, but rather that the actuators constantly apply contact forces to the side surfaces of the component, causing the nozzle slides to either move towards each other or away from each other, in the latter case moving against the contact forces of the actuators.

[0063] According to another embodiment, the application system has a linear compensation device which is designed to maintain a contact force of the width-variable application nozzle against the component during the application of the medium.

[0064] The linear compensation device is preferably spring-loaded. With the aid of the linear compensation device, a weight force compensation of the variable-width dispensing nozzle can be achieved. This means, in particular, that when working overhead with the variable-width dispensing nozzle, its weight does not cause the nozzle to lift off the end face of the component. Specifically, the contact force is applied to the end face of the component by means of the contact element. The dispensing nozzle is preferably pre-tensioned against the component, especially against its end face. ViscoTec Pumps and Dosing Technology GmbH

[0065] 15

[0066] According to another embodiment, the application system has a first tank for the first component, wherein the first tank is in fluid communication with the first progressive cavity pump, and a second tank for the second component, wherein the second tank is in fluid communication with the second progressive cavity pump.

[0067] Preferably, the first tank is connected to the first progressive cavity pump via a first delivery line. Similarly, the second tank is connected to the second progressive cavity pump via a second delivery line. The first and second tanks can each hold, for example, a volume of up to 600 ml or more of the respective component. The first and second tanks can each have a pneumatic cylinder that exerts a force on the respective component. Alternatively, the first and second tanks can each have a pneumatic piston with seals. The tanks can also each have sensors for measuring the fill level.

[0068] The embodiments and features described for the proposed variable-width application nozzle apply accordingly to the proposed application system and vice versa.

[0069] The term "one" here should not necessarily be understood as restricting the number to exactly one element. Rather, it can also refer to multiple elements, such as two, three, or more. Similarly, every other counter used here should not be interpreted as restricting the number to the exact number stated. Instead, numerical deviations, both higher and lower, are possible unless otherwise specified.

[0070] Other possible implementations of the variable-width application nozzle and / or the application system also include, but are not explicitly mentioned, Kombinat!- ViscoTec Pumpen- u. Dosiertechnik GmbH.

[0071] 16 features or embodiments described previously or subsequently with regard to the exemplary embodiments. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the variable-width application nozzle and / or the application system.

[0072] Further advantageous embodiments and aspects of the variable-width application nozzle and / or the application system are the subject of the dependent claims and the exemplary embodiments of the variable-width application nozzle and / or the application system described below. The variable-width application nozzle and / or the application system are further explained below with reference to preferred embodiments and the accompanying figures.

[0073] Fig. 1 shows a schematic perspective view of an embodiment of an order system;

[0074] Fig. 2 shows a schematic side view of an embodiment of a component;

[0075] Fig. 3 shows a schematic partial sectional view of the component according to Fig. 2;

[0076] Fig. 4 shows a schematic perspective view of an embodiment of a width-variable application nozzle for the application system according to Fig. 2;

[0077] Fig. 5 shows another schematic perspective view of the variable-width application nozzle according to Fig. 4; ViscoTec Pumpen- u. Dosiertechnik GmbH

[0078] 17

[0079] Fig. 6 shows a schematic perspective exploded view of the width-variable application nozzle according to Fig. 4;

[0080] Fig. 7 shows a schematic sectional view of the variable-width application nozzle according to Fig. 4;

[0081] Fig. 8 shows a schematic top view of the variable-width application nozzle according to Fig. 4 in an open position;

[0082] Fig. 9 shows another schematic top view of the width-variable application nozzle according to Fig. 4 in a closed position;

[0083] Fig. 10 shows a schematic perspective view of an embodiment of a linear compensation device for the order system according to Fig. 1; and

[0084] Fig. 11 shows a schematic perspective exploded view of the linear guide device according to Fig. 10.

[0085] In the figures, identical or functionally equivalent elements have been given the same reference symbols, unless otherwise indicated.

[0086] Fig. 1 shows a schematic perspective view of an embodiment of an application system 1.

[0087] The application system 1 has a variable-width application nozzle 2 for applying or metering a medium M. The application system 1 can also be referred to as a metering system, since it is suitable for metering the medium M. The variable-width application nozzle 2 is described below by ViscoTec Pumpen- u. Dosiertechnik GmbH.

[0088] 18 diglich als antragdüse 2. The medium M can also be referred to as product.

[0089] The medium M can be, for example, an adhesive and / or sealant, in particular a multi-component adhesive and / or sealant, water, an aqueous solution, a paint, a varnish, a suspension, a viscous raw material, an emulsion, a grease, or the like. For example, the medium M can be a two-component adhesive. Hereinafter, it is assumed that the medium M is a sealant, in particular a two-component sealant. In particular, the medium M can be suitable for sealing or caulking milled edges of components made of fiber-reinforced composites, in particular carbon fiber-reinforced composites. The medium M can be liquid or pasty. A "pasty medium" or "paste" is understood to be a solid-liquid mixture, in particular a suspension, with a high solids content.

[0090] The medium M can comprise one or more components Kl, K2, in particular a first component Kl and a second component K2. The components Kl, K2 can be liquid or pasty. Furthermore, one of the components Kl, K2 can also be a solid, in particular a filler, or contain a filler. The components Kl, K2 and the medium M are, in particular, fluids. In this context, "fluid" is understood to mean a flowable material in the broadest sense, i.e., not only liquid or pasty, but also granular, such as hollow glass or plastic spheres, or any mixture, including those inhomogeneous in grain size and / or material. The components Kl, K2 can also be pairs of any different fluids, i.e., they can contain, for example, liquid and granular components. In the present case, the first component Kl can, for example, be a resin and the second component K2 can, for example, be a hardener. ViscoTec Pumps &...Dosing Technology GmbH.

[0091] 19

[0092] The application system 1 further comprises a first progressive cavity pump e 3 for metering the first component Kl and a second progressive cavity pump 4 for metering the second component K2. The progressive cavity pumps 3, 4 are preferably of identical construction. Such a progressive cavity pump e 3, 4 preferably comprises a stator housed in a pump casing, which has an elastically deformable elastomer section with a central opening. The opening preferably comprises a helical or spiral inner contour. A rotatable rotor is preferably provided in the stator, which comprises a helical or spiral outer contour corresponding to the elastomer section. The rotor can be driven via a drive shaft by a drive element, in particular an electric motor.

[0093] The drive shaft can be rigidly connected to the rotor using a flexible shaft, flex shaft, or cardan shaft. When the rotor rotates, the respective component Kl, K2 is conveyed away from the drive shaft by the interaction with the stator according to the endless piston principle. The delivery volume of the respective progressive cavity pump 3, 4 depends on the rotational speed, size, pitch, and geometry of the rotor. The delivery volume can be increased, for example, by increasing the rotational speed of the rotor.

[0094] The first progressive cavity pump 3 is suitable for dosing the first component Kl. The second progressive cavity pump 4 is suitable for dosing the second component K2. The flow rates of the two components Kl and K2 can be different or identical. The progressive cavity pumps 3 and 4 are mounted on a flow block 5. The progressive cavity pumps 3 and 4 are preferably positioned relative to each other in a V-shape. The flow block 5 can be made of, for example, steel or aluminum. The flow block 5 can be made of multiple parts. ViscoTec Pumps and Dosing Technology GmbH

[0095] 20

[0096] Flow block 5 may include a first channel through which the first component Kl can pass. Furthermore, flow block 5 includes a second channel through which the second component K2 can pass. The two channels may be positioned in a V-shape relative to each other. Alternatively, the channels may also be positioned parallel to each other or at least partially parallel to each other.

[0097] The flow block 5 can further integrate a first pressure sensor 6 for detecting the dispensing pressure of the first component Kl and a second pressure sensor 7 for detecting the dispensing pressure of the second component K2. The application nozzle 2 is also mounted on the flow block 5. For this purpose, a quick-release fastener 8, for example in the form of a clamping device, can be provided, by means of which the application nozzle 2 is connected to the flow block 5.

[0098] Furthermore, a linear compensation device 9 is mounted on the flow block 5, which ensures that a contact force of the application nozzle 2, to be explained later, can be maintained at all times during the application of the medium M. In particular, the linear compensation device 9 serves to compensate for the weight force of the application system 1 during overhead operations with the application system 1 and / or the application nozzle 2. The linear compensation device 9 can be connected to a robot arm, which can be used to position or manipulate the application system 1.

[0099] The first progressive cavity pump 3 is assigned a first tank 10 for the first component Kl. The first tank 10 is connected to the first progressive cavity pump 3 via a first delivery line 11. The second progressive cavity pump 4 is assigned a second tank 12 for the second component K2. The second tank 12 is connected to the first component Kl via a second delivery line 11. ViscoTec Pumps and Dosing Technology GmbH

[0100] Line 21 13 is connected to the fluid supply of the second progressive cavity pump 4. Tanks 10 and 12 can each hold a volume of 600 ml or more of either the first component Kl or the second component K2. Tanks 10 and 12 can each be equipped with a sensor for level measurement.

[0101] Tanks 10 and 12 can each also have a pneumatic piston with seals for pressurizing the respective component Kl and K2. This pneumatic piston can, for example, apply a maximum pressure of 6 bar.

[0102] Fig. 2 shows a schematic side view of an embodiment of component 14. Fig. 3 shows an enlarged schematic partial sectional view of component 14. Reference is made hereafter to Figs. 2 and 3 simultaneously.

[0103] Component 14 can, for example, be part of an aircraft wing. In particular, component 14 can be a so-called stringer. Component 14 is made of a fiber-reinforced composite material, especially a carbon fiber-reinforced composite material. Component 14 can have a length of up to 40 m or more. Component 14 is plate-shaped.

[0104] Component 14 has an edge surface or end face 15 that surrounds the component 14. The end face 15 is to be sealed with the medium M. Before sealing with the medium M, the end face 15 is milled in a preceding process. This milling process necessitates the sealing of the end face 15. The end face 15 can completely surround the component 14. The end face 15 is preferably not straight or flat, but has a geometry that is at least partially curved or wavy.

[0105] At its end face 15, component 14 has a component thickness dl4. The component thickness dl4 is, for example, 8 mm to 26 mm. However, the component thickness dl4 is not constant along the length of the end face 15, but varies. ViscoTec Pumps and Dosing Technology GmbH

[0106] Figure 22 describes how the application nozzle 2 is moved along an application direction 16 along the end face 15 to apply the medium M to the end face 15 with a layer thickness S. The application direction 16 is oriented from right to left in the orientation shown in Figure 2. However, the application direction 16 can also be oriented in the opposite direction. The layer thickness S is preferably constant over the entire end face 15. The layer thickness S can, for example, be 0.4 mm to 0.7 mm.

[0107] To apply the medium M to the end face 15, the application nozzle 2 rests against the end face 15. The application nozzle 2 is pressed against the end face 15 with a contact force F15. The linear compensation device 9 ensures that the application nozzle 2 remains in contact with the end face 15 at all times as it moves along the application direction 16. In other words, the contact force F15 is maintained at all times by means of the linear compensation device 9.

[0108] Component 14 further comprises a first side surface 17 and a second side surface 18, which faces away from the first side surface 17. The first side surface 17 and the second side surface 18 can be arranged perpendicular to the end face 15. As the application nozzle 2 moves along the application direction 16, it also contacts both side surfaces 17 and 18 and slides onto them, as will be explained below. The application nozzle 2 exerts a first contact force F17 on the first side surface 17 and a second contact force F18 on the second side surface 18. The contact forces F17 and F18 are oriented in opposite directions. The contact forces F17 and F18 are preferably equal in magnitude.

[0109] Fig. 4 shows a schematic perspective view of an embodiment of the application nozzle 2 mentioned above. Fig. 5 shows another schematic perspective view of the application nozzle 2. Fig. 6 shows a ViscoTec Pumpen- u. Dosiertechnik GmbH

[0110] Figure 23 shows a schematic perspective exploded view of the application nozzle 2. Figure 7 shows a schematic sectional view of the application nozzle 2. Figure 8 shows a schematic top view of the application nozzle 2. Figure 9 shows another schematic top view of the application nozzle 2. Figures 4 to 9 are referred to simultaneously below.

[0111] The application nozzle 2 can also be referred to as a metering nozzle. The application nozzle 2 comprises a multi-part nozzle unit 19, which has a nozzle body 20 and a nozzle insert 21 arranged at least partially within the nozzle body 20. The nozzle body 20 can be made of a metallic material, such as an aluminum alloy or a stainless steel alloy. Other materials can also be used.

[0112] The nozzle insert 21 is preferably made of a plastic material. For example, the nozzle insert 21 is a plastic injection-molded component or a 3D-printed component. The nozzle insert 21 can be replaceable. The nozzle insert 21 can be a disposable component. Preferably, during operation of the application nozzle 2, only the nozzle insert 21 and not the nozzle body 20 comes into contact with the medium M.

[0113] The nozzle unit 19 has a slot-shaped nozzle opening 22, from which the medium M emerges during operation of the application nozzle 2 for application onto the component 14. The nozzle opening 22 is provided, in particular, on the nozzle insert 21. If the nozzle unit 19 does not have a nozzle insert 21, the nozzle opening 22 is attached directly to the nozzle body 20. As shown in Fig. 7, the nozzle insert 21 has a distribution contour 23 for distributing the medium M onto the nozzle opening 22. The distribution contour 23 can be frustoconical. The distribution contour 23 is positioned upstream of the nozzle opening 22. ViscoTec Pumps and Dosing Technology GmbH

[0114] 24

[0115] The nozzle body 20 comprises a receiving area 24 (Fig. 7) for receiving the nozzle insert 21. The receiving area 24 is a recess machined into the nozzle body 20. Furthermore, the nozzle unit 19 has a first guide rail 25 and a second guide rail 26 integrally formed with the nozzle body 20.

[0116] The nozzle unit 19 has a contact element 27 attached to the nozzle body 20. The contact element 27 is ridge-shaped. The contact element 27 has a high hardness and is made of a wear-resistant material, such as a ceramic material or a chrome-plated steel alloy. During operation of the application nozzle 2, the contact element 27 is in contact with the end face 15 and applies the contact force F15 to the end face 15.

[0117] Furthermore, the contact element 27 defines the layer thickness S of the medium M on the end face 15. For this purpose, the contact element 27 projects beyond the nozzle opening 22. In other words, the nozzle opening 22 is set back from the contact element 27 by the layer thickness S. Several fastening elements 28, in particular in the form of screws, are provided for mounting the contact element 27 to the nozzle body 20, of which only one is shown in Fig. 6. The contact element 27 can be easily and quickly replaced when worn by removing the fastening elements 28. The contact element 27 is therefore a wear part.

[0118] The nozzle unit 19 has several fastening elements 29, in particular in the form of screws, of which only one is provided with a reference numeral in Fig. 6. The nozzle body 20 is connected to a support tube 30 by means of the fastening elements 29. The support tube 30 includes a flange section 31 to which the nozzle body 20 is attached by means of the fastening elements 29. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0119] 25 is connected, in particular screwed. In addition, the flange section 31 can be pinned to the nozzle body 20 by means of pins 32, of which only one is provided with a reference numeral in Fig. 7.

[0120] A sealing element 33, in particular in the form of an O-ring, is arranged between the flange section 31 and the nozzle body 20 to provide a fluid-tight seal between the nozzle body 20 and the flange section 31. The sealing element 33 can be received in a groove machined into the flange section 31. The sealing element 33 is pressed between the nozzle body 20 and the flange section 31.

[0121] A medium channel 34 is incorporated into the flange section 31, through which the medium M flows during operation of the application nozzle 2 and is supplied to the nozzle opening 22. A combined temperature and pressure sensor 35 for detecting the temperature and metering pressure of the medium M is also mounted on the flange section 31. The temperature and pressure sensor 35 measures the temperature and metering pressure of the medium M in the medium channel 34. For this purpose, the temperature and pressure sensor 35 can protrude into the medium channel 34.

[0122] The support tube 30 further comprises a tubular mixing section 36, in which a mixing unit 37 is housed. The mixing unit 37 is a static mixing unit. With the aid of the mixing unit 37, the components Kl and K2 can be mixed to form the medium M. The fact that the mixing unit 37 is "static" means in this context that the mixing unit 37 has no moving parts and does not rotate, but is fixed opposite the mixing section 36. The two components Kl and K2 are mixed by multiple cross-flows when they are conveyed through the mixing unit 37. Alternatively, however, an active mixing unit can also be used, which has moving, in particular rotating, components for mixing the components Kl and K2 to form the medium M. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0123] 26 Mixing unit 37 is sealed against the mixing section 36 by means of a sealing element 38, in particular in the form of an O-ring.

[0124] A further flange section 39 connects to the mixing section 36, and this flange section connects the support pipe 30 to the flow block 5. For this purpose, the quick-release fastener 8 engages the flange section 39. A pin 40 can be attached to the flange section 39 for the correct positioning of the flange section 39 on the flow block 5.

[0125] The application nozzle 2 further comprises a first nozzle slide 41 which is linearly displaceable on the nozzle unit 19, in particular on the nozzle body 20, and is arranged outside the nozzle opening 22. Two gripping sections 42, 43 are integrally formed on the first nozzle slide 41, which are configured to grip the two guide rails 25, 26 of the nozzle body 20, so that the first nozzle slide 41 is linearly displaceable on the nozzle unit 19, in particular on the nozzle body 20, in order to either partially cover or uncover the nozzle opening 22.

[0126] The first nozzle slide 41 is associated with a first sliding and sealing element 44, which, during operation of the application nozzle 2, allows the first nozzle slide 41 to slide on one of the two side surfaces 17, 18 of the component 14 and also applies the corresponding contact force Fl 7, F18 to the respective side surface 17, 18. The first sliding and sealing element 44 is arranged at least partially within the first nozzle slide 41. In particular, the first sliding and sealing element 44 is part of the first nozzle slide 41. In other words, the first nozzle slide 41 can be multi-part. The first sliding and sealing element 44 can, for example, be made of a plastic material. In particular, the first sliding and sealing element 44 can be a plastic injection-molded component or a 3D-printed component. The first sliding and sealing element 44 is replaceable. In particular, the first sliding and sealing element 44 is a disposable component.

[0127] The first sliding and sealing element 44 is spring-loaded towards the nozzle body 20 by means of spring-loaded pressure pieces 45, 46, which are mounted on the first nozzle slide 41. The first sliding and sealing element 44 is positioned between the first nozzle slide 41 and the nozzle body 20 and slides on the nozzle body 20 when the first nozzle slide 41 moves relative to the nozzle body 20. In conjunction with the pressure pieces 45, 46, the first sliding and sealing element 44 closes and seals the nozzle opening 22 when the first nozzle slide 41 is positioned in front of the nozzle opening 22. The pressure pieces 45, 46 ensure a defined contact force of the first sliding and sealing element 44 against the nozzle body 20.

[0128] A first actuating element 47 is associated with the first nozzle slide 41. The first actuating element 47 is pneumatically operated. The first actuating element 47 can be a pneumatic cylinder. With the aid of the first actuating element 47, the first nozzle slide 41 can be moved or traversed linearly along the guide rails 25, 26 relative to the nozzle unit 19, in particular relative to the nozzle body 20, in order to partially cover or uncover the nozzle opening 22.

[0129] A first mounting plate 48 is associated with the first actuating element 47, by means of which the first actuating element 47 is connected to the nozzle unit 19, in particular to the nozzle body 20. The first mounting plate 48 is connected to the nozzle unit 19, in particular to the nozzle body 20, by means of fastening elements 49, in particular in the form of screws, of which only one is provided with a reference numeral in Figures 6 and 7. A pin connection using a pin 50 may also be provided. The first actuating element 47, in turn, is connected to the first mounting plate 48 by means of fastening elements 51, for example in the form of screws. ViscoTec Pumps and Dosing Technology GmbH 28

[0130] The first nozzle slide 41 is connected, in particular screwed, to a piston 53 (Fig. 7) of the first actuating element 47 by means of a fastening element 52, for example in the form of a screw. The first actuating element 47 is double-acting. "Double-acting" in this context means that the piston 53 can be both extended and retracted, so that the first nozzle slide 41 can be moved in two opposite directions.

[0131] A first displacement sensor 54 is assigned to the first actuator 47. The first displacement sensor 54 is mounted on the first actuator 47. Using the first displacement sensor 54, the position of the piston 53 of the first actuator 47, and thus also the position of the first nozzle slide 41, can be detected. Since the first nozzle slide 41, with the first sliding and sealing element 44, slides on one of the side surfaces 17, 18 of the component 14, the component thickness dl4 can be determined in real time.

[0132] Furthermore, the application nozzle 2 comprises a second nozzle slide 55. The second nozzle slide 55 is identical in construction to the first nozzle slide 41 and arranged in a mirror image of it. A second sliding and sealing element 56 is attached to the second nozzle slide 55. The second sliding and sealing element 56 is located at least partially within the second nozzle slide 55. In particular, the second sliding and sealing element 56 is part of the second nozzle slide 55. In other words, the second nozzle slide 55 can be multi-part. The first sliding and sealing element 44 and the second sliding and sealing element 56 are identical in construction and arranged in a mirror image.

[0133] The second sliding and sealing element 56 is located between the second nozzle slide

[0134] 55 and the nozzle unit 19, in particular the nozzle body 20, arranged. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0135] 29 The second sliding and sealing element 56 is spring-loaded against the nozzle unit 19, in particular against the nozzle body 20, by means of pressure pieces 57, 58. The pressure pieces 45, 46, 57, 58 are identical in construction. The second sliding and sealing element 56 rests against the side surface 17, 18 of the component 14 against which the first sliding and sealing element 44 does not rest, and applies the corresponding contact force Fl 7, F18 to the respective side surface 17, 18.

[0136] A second actuator 59 is associated with the second nozzle slide 55. The second actuator 59 is also a pneumatic cylinder. The two actuators 47 and 59 are identical in design. Accordingly, the second actuator 59 is also double-acting. The second actuator 59 comprises a piston 60 (Fig. 7), to which the second nozzle slide 55 is coupled, as previously explained with reference to the first nozzle slide 41 and the piston 53, in order to move the second nozzle slide 55. A second displacement sensor 61 is associated with the second actuator 59, which can detect the displacement traveled by the piston 60 and thus also by the second nozzle slide 55, as previously explained with reference to the first displacement sensor 54.

[0137] The functionality of the application nozzle 2 is explained below with reference to Figures 4, 5, 8, and 9. Using the two actuating elements 47 and 59, the first nozzle slide 41 and the second nozzle slide 55, and thus also the application nozzle 2 itself, can be moved from an open position PI shown in Figures 4, 7, and 8, in which the nozzle slides 41 and 55, in particular the sliding and sealing elements 44 and 56, completely open the nozzle opening 22, to a closed position P2 shown in Figures 5 and 9, in which the first nozzle slide 41 and the second nozzle slide 55, in particular the sliding and sealing elements 44 and 56, at least partially close the nozzle opening 22, and vice versa. The first nozzle slide 41 and the second nozzle slide 55 can be moved or traversed independently of each other. ViscoTec Pump and Dosing Technology GmbH 30

[0138] As shown in Fig. 5, the sliding and sealing elements 44, 56 can also abut or contact each other in the closed position P2, so that the nozzle opening 22 is completely covered or closed in the closed position P2. This can, for example, prevent atmospheric oxygen from reaching the medium M in the closed position P2. In this case, the sliding and sealing elements 44, 56 can be pressed together or forced against each other by the contact forces F17, F18.

[0139] As shown in Fig. 8, the first nozzle slide 41, together with the first sliding and sealing element 44, can be moved in a first direction of movement 62 by means of the first actuating element 47 in order to move the first nozzle slide 41 from the open position PI to the closed position P2. Conversely, the first actuating element 47 can move the first nozzle slide 41, together with the first sliding and sealing element 44, from the closed position P2 to the open position PI in a second direction of movement 63 oriented opposite to the first direction of movement 62.

[0140] Accordingly, the second nozzle slide 55, together with the second sliding and sealing element 56, can be moved in a first direction of movement 64 by means of the second actuating element 59 in order to move the second nozzle slide 55 from the open position P1 to the closed position P2. Conversely, the second actuating element 59 can move the second nozzle slide 55, together with the second sliding and sealing element 56, from the closed position P2 to the open position PI in a second direction of movement 65 oriented opposite to the first direction of movement 64.

[0141] Using the previously described method or by repositioning the nozzle slides 41, 55, the nozzle width b22 of the application nozzle 2 can be actively and continuously adjusted. The nozzle width b22 can range from 0 mm to 30 mm. The nozzle width b22 can be defined as the distance between the sliding and sealing elements 44. ViscoTec Pumpen- u. Dosiertechnik GmbH 31

[0142] 56 to each other. However, the nozzle width b22 can also be defined as an actual slot width of the nozzle opening 22.

[0143] For example, the application nozzle 2 can be moved to the open position PI to perform a rinsing process in which a predetermined quantity of the medium M is dosed, for example, into a waste container. Furthermore, as explained previously, the nozzle opening 22 can be completely closed in the closed position P2 to prevent atmospheric oxygen from coming into contact with the medium M. The nozzle carriages 41 and 55 can be moved independently of each other. The nozzle carriages 41 and 55 can be moved in opposite or the same direction.

[0144] As shown in Fig. 9, the first nozzle slide 41, during operation of the application nozzle 2, applies the first contact force F17 to the first side surface 17 of the component 14 with the aid of the first sliding and sealing element 44. Correspondingly, the second nozzle slide 55, with the aid of the second sliding and sealing element 56, applies the second contact force F18 to the second side surface 18 of the component 14. The magnitude of the contact forces F17 and F18 can be adjusted using the adjusting elements 47 and 59. The component 14 does not need to be positioned centrally between the nozzle slides 41 and 55. In other words, an off-center positioning of the nozzle slides 41 and 55 is possible. This is possible because the adjusting elements 47 and 59, and thus also the nozzle slides 41 and 55, can operate independently of each other.

[0145] If the component thickness dl4 and thus also the nozzle width b22 change during a movement of the application nozzle 2 along the application direction 16, the contact forces F17, F18 ensure that the sliding and sealing elements 44, 56 always bear against the side surfaces 17, 18 during the movement of the application nozzle 2. The sliding and sealing elements 44, 56 and thus also the nozzle carriage 41, ViscoTec Pumpen- u. Dosiertechnik GmbH 32

[0146] 55 follow the component thickness dl4, whereby the nozzle width b22 automatically adapts to the component thickness dl4.

[0147] If the component thickness dl4 increases, for example, the nozzle slides 41, 55 are moved apart against the contact forces F17, F18 in their respective second direction of movement 63, 65, thereby increasing the nozzle width b22. If the component thickness dl4 decreases again, the nozzle slides 41, 55 move towards each other in their respective first direction of movement 62, 64, thereby decreasing the nozzle width b22. The nozzle width b22 can correspond to the component thickness dl4. The nozzle width b22 is therefore preferably not actively adjusted, but rather adapts passively, yet automatically, to the component thickness dl4. This can be achieved by the actuating elements 47, 59 always applying the contact forces Fl7, F18 to the component 14.

[0148] The displacement sensors 54 and 61 allow the component thickness dl4, and thus also the nozzle width b22, to be determined in real time. If the component thickness dl4 changes, a modified flow rate of the medium M may be necessary to achieve a constant layer thickness S. Accordingly, the application speed can be adjusted. Alternatively, the application speed can be kept constant, and the flow rate of the medium M adjusted. The objective in this case is to maintain a constant layer thickness S. Sensor data from the displacement sensors 54 and 61 provide a crucial value for the respective metering speed of the progressive cavity pumps 3 and 4, depending on the nozzle width b22.

[0149] The temperature and pressure sensor 35 is used for process monitoring and for shutting down the application system 1 in the event of overpressure. Furthermore, sensor data from the temperature and pressure sensor 35 can be used to assess the quality of the material application of the medium M. (Re-ViscoTec Pumpen- u. Dosiertechnik GmbH)

[0150] 33. Controlling the metering speed based on the pressure of the medium M inside the application nozzle 2 is possible to ensure consistent application quality. For example, potential defects can be identified and checked by a pressure increase or decrease.

[0151] The application nozzle 2 is designed so that product-contacting parts, such as the nozzle insert 21, the sliding and sealing elements 44, 56, and / or the mixing unit 37, can be easily replaced as disposable items. Furthermore, the application nozzle 2 is designed to be completely disassemblable and cleanable, ensuring stability and long-term usability even when dispensing reactive media M in conjunction with direct contact with component 14. The connection of the application nozzle 2 to the application system 1 is also designed for quick and easy disassembly, as appropriate cleaning and maintenance are essential when dispensing reactive media M.

[0152] Fig. 10 shows a schematic perspective view of an embodiment of a linear compensation device 9 as previously mentioned. Fig. 11 shows a schematic perspective exploded view of the linear compensation device 9. Reference is made hereafter to Figs. 10 and 11 simultaneously.

[0153] The linear compensation device 9 has a linear guide 66, which includes a guide rail 67 and a guide carriage 68 mounted linearly displaceable on the guide rail 67. A first flange element 69 is mounted on the guide carriage 68. For this purpose, fastening elements 70, in particular in the form of screws, are provided, of which only one is provided with a reference numeral in Figures 10 and 11. The first flange element 69 is connected to the flow block 5. The first flange element 69 comprises a first fastening section 71, which is attached by means of the fastening elements. ViscoTec Pumpen- u. Dosiertechnik GmbH

[0154] 34 mente 70 is connected to the guide carriage 68, and a second fastening section 72 is connected to the flow block 5.

[0155] Several connecting elements 73 are inserted, in particular screwed, into the underside of the first fastening section 71. For example, three connecting elements 73 are provided. Several spring elements 74, of which only one is provided with a reference numeral in Figures 10 and 11, are hooked into the connecting elements 73. For example, three spring elements 74 are provided. The spring elements 74 can be cylindrical springs. The spring elements 74 are preferably tension springs. Instead of the spring elements 74 in the form of tension springs, a passive unit, in particular a pneumatic cylinder, can also be used.

[0156] The linear compensation device 9 further comprises a second flange element 75, which is connected to the robot arm mentioned in the introduction for manipulating the application system 1 by means of fastening elements 76, in particular in the form of screws. The second flange element 75 comprises a mounting section 77, which is connected to the robot arm, and a suspension section 78, into which the spring elements 74 are suspended.

[0157] The guide rail 67 is connected to the mounting section 77 of the second flange element 75. The contact force F15 can be maintained by means of the linear compensation device 9. In particular, the linear compensation device 9 serves to compensate for the weight force when the application nozzle 2 is used overhead. The linear compensation device 9 generates, in particular, a spring preload against the end face 15 of the component 14.

[0158] Although the present invention has been described using exemplary embodiments, it can be modified in many ways. ViscoTec Pumps and Dosing Technology GmbH

[0159] 35

[0160] REFERENCE MARK LIST

[0161] 1 Order system

[0162] 2 application nozzle

[0163] 3 eccentric screw pump

[0164] 4 eccentric screw pumps

[0165] 5 Flow block

[0166] 6 Pressure sensor

[0167] 7 Pressure sensor

[0168] 8 Quick release

[0169] 9 Linear compensation device

[0170] 10 Tank

[0171] 11 F Funding Management

[0172] 12 Tank

[0173] 13 Conveyor line

[0174] 14 Component

[0175] 15 Front surface

[0176] 16 Order direction

[0177] 17 side surface

[0178] 18 side surface

[0179] 19 nozzle unit

[0180] 20 nozzle bodies

[0181] 21 Nozzle insert

[0182] 22 Nozzle opening

[0183] 23 Distribution contour

[0184] 24 recording area

[0185] 25 guide rail

[0186] 26 Guide rail

[0187] 27 Contact element

[0188] 28 Fastening element ViscoTec Pumps and Dosing Technology GmbH

[0189] 36

[0190] 29 Fastening element

[0191] 30 support tube

[0192] 31 Flange section

[0193] 32 pens

[0194] 33 Sealing element

[0195] 34 Medium channel

[0196] 35 Temperature and pressure sensor

[0197] 36 Mixing section

[0198] 37 Mixing unit

[0199] 38 Sealing element

[0200] 39 Flange section

[0201] 40 pens

[0202] 41 jet sleds

[0203] 42 To grab off cut

[0204] 43 To grab off cut

[0205] 44 Sliding and sealing element

[0206] 45 printing piece

[0207] 46 printed piece

[0208] 47 Actuator

[0209] 48 Mounting plate

[0210] 49 Fastening element

[0211] 50 pens

[0212] 51 Fastening element

[0213] 52 Fastening element

[0214] 53 pistons

[0215] 54 Displacement sensor

[0216] 55 jet sleds

[0217] 56 Sliding and sealing element

[0218] 57 printed piece

[0219] 58 Pressure piece ViscoTec Pumps and Dosing Technology GmbH

[0220] 37

[0221] 59 Actuator

[0222] 60 pistons

[0223] 61 Displacement sensor

[0224] 62 Direction of movement

[0225] 63 Direction of movement

[0226] 64 Direction of movement

[0227] 65 Direction of movement

[0228] 66 Linear guide

[0229] 67 Guide rail

[0230] 68 guide carriages

[0231] 69 Flange element

[0232] 70 Fastening element

[0233] 71 Fastening section

[0234] 72 Fastening section

[0235] 73 Connecting element

[0236] 74 Spring element

[0237] 75 Flange element

[0238] 76 Fastening element

[0239] 77 Fastening section

[0240] 78 units from section b22 nozzle width dl4 component thickness

[0241] F15 contact force

[0242] F17 Plant capacity

[0243] F 18 Plant capacity

[0244] Kl component

[0245] K2 component

[0246] M Medium

[0247] S layer thickness ViscoTec Pumps and Dosing Technology GmbH 38

[0248] Pl Open Position

[0249] P2 Closed position

Claims

ViscoTec Pump and Dosing Technology GmbH 39 patent claims 1. A variable-width application nozzle (2) for applying a medium (M), comprising a nozzle unit (19) with a nozzle opening (22), a nozzle slide (41, 55) mounted linearly displaceable on the nozzle unit (19) and arranged outside the nozzle opening (22), an actuating element (47, 59) for linearly displacing the nozzle slide (41, 55) relative to the nozzle unit (19), and a sliding and sealing element (44, 56) attached to the nozzle slide (41, 55), wherein the actuating element (47, 59) is configured to move the nozzle slide (41, 55) from an open position (Pl), in which the nozzle slide (41, 55) completely opens the nozzle opening (22), to a closed position (P2), in which the nozzle slide (41, 55) covers the nozzle opening. (22) at least partially closes, and conversely to displace, and wherein the nozzle slide (41, 55) in operation of the variable-width application nozzle (2) with the aid of the sliding and sealing element (44, 56) on a side surface (17,18) of a component (14) to be treated with the medium (M) slides, so that the nozzle carriage (41, 55) follows a component thickness (dl4) of the component (14), whereby a nozzle width (b22) of the application nozzle (2) automatically adapts to the component thickness (dl4).

2. Width-variable application nozzle according to claim 1, characterized by a first nozzle slide (41) to which a first actuating element (47) is assigned, and a second nozzle slide (55) to which a second actuating element (59) is assigned, wherein the first actuating element (47) and the second actuating element (59) are configured to actuate the first nozzle slide (41) and the second nozzle slide (55). ViscoTec Pump and Dosing Technology GmbH 40 slides (55) are to be moved from the open position (Pl) to the closed position (P2) and vice versa.

3. Variable-width application nozzle according to claim 2, characterized in that the first actuating element (47) and the second actuating element (59) are configured to displace the first nozzle slide (41) and the second nozzle slide (55) in opposite or the same direction.

4. Width-variable application nozzle according to one of claims 1 - 3, characterized in that the nozzle opening (22) is slot-shaped.

5. Variable-width application nozzle according to one of claims 1 - 4, characterized in that the nozzle unit (19) has a guide rail (25, 26) on which the nozzle slide (41, 55) is linearly displaceable, wherein the nozzle slide (41, 55) surrounds the guide rail (25, 26).

6. Width-variable application nozzle according to one of claims 1 - 5, characterized by a contact element (27) attached to the nozzle unit (19), with the aid of which the width-variable application nozzle (2) slides on an end face (15) of the component (14) during operation of the width-variable application nozzle (2), wherein the contact element (27) defines a layer thickness (S) of the medium (M) on the end face (15).

7. Variable-width application nozzle according to one of claims 1-6, characterized in that, ViscoTec Pump and Dosing Technology GmbH 41 that the nozzle unit (19) has a nozzle body (20) on which the nozzle slide (41, 55) is mounted in a linearly displaceable manner and a nozzle insert (21) arranged at least partially within the nozzle body (20), wherein the nozzle insert (21) has the nozzle opening (22).

8. Variable-width application nozzle according to claim 7, characterized in that the nozzle insert (21) has a distribution contour (23) for uniformly distributing the medium (M) onto the nozzle opening (22).

9. Width-variable application nozzle according to one of claims 1 - 8, characterized by a displacement measuring sensor (54, 61) for measuring a travel distance of the nozzle carriage (41, 55).

10. Application system (1) for applying a medium (M), comprising a first progressive cavity pump (3) for metering a first component (Kl) of the medium (M), a second progressive cavity pump (4) for metering a second component (K2) of the medium (M), a mixing unit (37), in particular a static mixing unit, for mixing the first component (Kl) and the second component (K2) to form the medium (M), and a variable-width application nozzle (2) according to any one of claims 1-9, wherein a nozzle width (b22) of the variable-width application nozzle (2) is adjustable during application of the medium (M).

11. Application system according to claim 10, characterized in that the nozzle width (b22) is infinitely adjustable. ViscoTec Pump and Dosing Technology GmbH 42 12. Application system according to claim 10 or 11, characterized in that the nozzle width (b22) automatically adjusts to the component thickness (dl4) of a component (14) to be treated with the medium (M) during the application of the medium (M).

13. Application system according to claim 12, characterized by a linear compensation device (9) which is configured to maintain a contact force (F15) of the width-variable application nozzle (2) against the component (14) during the application of the medium (M).

14. Application system according to one of claims 10 - 13, characterized by a first tank (10) for the first component (Kl), wherein the first tank (10) is in fluid communication with the first progressive cavity pump (3), and a second tank (12) for the second component (K2), wherein the second tank (12) is in fluid communication with the second progressive cavity pump (4).

Images