System for coating a component

Abstract

The invention relates to a system (100) for coating a component (200) with a viscous coating compound (210), wherein a nozzle (110) is configured to apply the coating compound (210) to the component (200), and a receiver (120) is configured to receive a thread (211) formed from the coating compound (210) which runs between the nozzle (110) and the component (200) after the coating compound (210) has been applied.

Description

[0001] The invention relates to a system for coating a component according to the preamble of claim 1.

[0002] DE 10 2013 105 250 B4 discloses a device for coating plate-shaped blanks with a viscous or pasty, curable material. The device comprises a horizontally oriented conveyor, on whose sliding plane flat blanks are successively fed to a coating station and a scraper located above the sliding plane downstream of the coating station, and a cleaning element located below the sliding plane, wherein the scraper can be lowered below the sliding plane in such a way that its scraping edge comes into contact with the cleaning element.

[0003] The invention is based on the objective of providing a novel system for coating a component.

[0004] The problem is solved according to the invention by a system which has the features of claim 1.

[0005] Advantageous embodiments of the invention are the subject of the dependent claims.

[0006] According to the invention, a system for coating a component with a viscous coating compound is characterized by a nozzle which is designed to apply the coating compound to the component, and a receiver which is designed to receive a string formed from the coating compound that runs between the nozzle and the component after the coating compound has been applied.

[0007] The system, particularly the pickup, enables the controlled removal of the coating threads after application. This eliminates the need for additional nozzle movements to remove the threads, reduces the viscosity of the coating compound, and / or increases the cycle time for coating application. The pickup, for example, via a spindle, directs the coating compound collected by the pickup into a collection container and removes it from the production area. This prevents component contamination by excess coating compound, especially the coating compound from uncontrolled coating threads. As a result, additional cleaning and / or post-processing of the components is reduced or eliminated, thus shortening cycle times in series production.Furthermore, rejects due to component defects, such as a reduced fit due to an excess of coating material, can be avoided.

[0008] Furthermore, an unwanted increase in weight due to unremoved thread pull on components, especially components with multiple coating areas, is avoided.

[0009] Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

[0010] This shows: Fig. 1 schematically a possible embodiment of a system for coating components with a viscous coating compound, Fig. 2 schematically a possible embodiment of a sensor of the system according to Fig. 1, Fig. 3 schematically the receiver according to Fig. 2 from a different perspective, Fig. 4 schematically the receiver according to Fig. 2 in a first state, Fig. 5 schematically the receiver according to Fig. 2 in a second state and Fig. 6 schematically the receiver according to Fig. 2 in a third state.

[0011] Corresponding parts are marked with the same reference symbols in all figures.

[0012] Fig. Figure 1 schematically shows a possible embodiment of part of a system 100 for coating components 200 with a viscous coating compound 210 and the components 200 to be coated.

[0013] The system 100 has a nozzle 110 and a receiver 120.

[0014] The nozzle 110 is arranged above a coating area 201 of a component 200.

[0015] The nozzle 110 is designed to apply the coating compound 210 to the component 200, in particular to the coating area 201.

[0016] The pickup 120 is in a waiting position next to the nozzle 110.

[0017] For coating, the nozzle 110 is moved close to the coating area 201. The coating compound 210 is then conveyed from the nozzle 110 and applied to the coating area 201. Once the coating compound 210 has been completely and sufficiently thickly applied to the coating area 201, the nozzle 110 is moved as described in Fig. Figure 4 shows in more detail the material being carried away from the coating area 201 in a vertical direction z. In this process, a stringing 211 formed from the coating material 210 can occur between the nozzle 110 and the component 200, particularly between the applied coating material 210. To prevent contamination of the component 200, the stringing 211 must be removed in a controlled manner.

[0018] Fig. Figure 2 schematically shows a possible embodiment of the sensor 120 of the system 100 according to Fig. 1. Fig. Figure 3 schematically shows the sensor 120 according to Fig. 2 from another perspective.

[0019] The pickup 120 has a housing 121, a spindle 122, a wiper 123 and a collection container 124.

[0020] The housing 121 is adjustable in the vertical direction z and is rotatably coupled to the system 100 about a rotary axis extending in the vertical direction z.

[0021] The spindle 122 is arranged on one side of the housing 121 and, in the illustrated embodiment, is designed as a rotating thread.

[0022] In other embodiments not shown in detail, the spindle 122 may have a different shape which is suitable for receiving the thread pull 211.

[0023] The spindle 122 is designed to receive the coating mass 210 of the thread pull 211 and to wind it onto itself by rotation.

[0024] The wiper 123 is arranged on one side of the spindle 122.

[0025] The collection container 124 is arranged between the housing 121 and the wiper 123 in such a way that coating mass 210 derived from the spindle 122 by means of the wiper 123 is collected in the collection container 124.

[0026] The collection container 124 has a drain 125 which is designed to drain the coating mass 210 collected by means of the collection container 124.

[0027] Fig. Figure 4 schematically shows the sensor 120 according to Fig. 2 in a first state.

[0028] In the illustrated embodiment, after the coating compound 210 has been applied to the coating area 201, the nozzle 110 is directed away from the component 200 in the vertical direction z. The thread pull 211 is formed between the applied coating compound 210 and the nozzle 110.

[0029] The receiver 120 is in a waiting position.

[0030] Fig. Figure 5 schematically shows the sensor 120 according to Fig. 2 in a second state.

[0031] The pickup 120 is rotated from the waiting position to a working position by means of a rotation about the axis of rotation, so that the spindle 122 can pick up the thread pull 211 by rotation.

[0032] Fig. Figure 6 schematically shows the sensor 120 according to Fig. 2 in a third state.

[0033] The pickup 120 is in the working position. By means of a rotation of the spindle 122, the filament 211 is picked up by the spindle 122. The coating compound 210 of the picked-up filament 211 is guided to the wiper 123 by the rotation of the spindle 122. By means of the wiper 123 and in combination with the thread of the spindle 122, the coating compound 210 is conveyed towards the collection container 124.

[0034] As soon as sufficient coating material 210 of the thread 211 has been picked up by the spindle 122, the thread 211 breaks away from the coating material 210 applied to the coating area 201, so that only a very small portion of the coating material 210 of the thread 211 falls onto the applied coating material 210. The length of the broken-off thread 211, and thus the amount of coating material 210 that falls onto the coating area 201, results, for example, from its position in the vertical direction z and thus from the distance of the pick-up device 120, in particular the spindle 122, to the coating area 201.

[0035] The coating material 210 collected is discharged from the components 200 via the outlet 125 of the collection container 124. The discharged coating material 210 can be fed back into the nozzle 110, for example for further coating processes. Reference symbol list 100 plant 110 nozzle 120 receivers 121 cases 122 Spindle 123 wipers 124 collection containers 125 Drain 200 components 201 Coating area 210 Coating compound 211 Thread pull z Upward direction QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2013 105 250 B4

[0002]

Claims

[1] Device (100) for coating a component (200) with a viscous coating compound (210), characterized by - a nozzle (110) which is designed to apply the coating compound (210) to the component (200), and - a receiver (120) which is designed to receive a string (211) formed from the coating mass (210) which runs between the nozzle (110) and the component (200) after the coating mass (210) has been applied. [2] Plant (100) according to claim 1, characterized by , that the receiver (120) has a rotating spindle (122) with a thread, wherein the spindle (122) is designed to receive the coating mass (210). [3] Plant (100) according to claim 2, characterized by , that the receiver (120) has a wiper (123) which is designed to drain the coating mass (210) picked up by means of the spindle (122). [4] Plant (100) according to claim 3, characterized by, that the receiver (120) has a collection container (124) which is designed to receive the coating mass (210) conveyed by means of the scraper (123). [5] Plant (100) according to claim 4, characterized by , that the collection container (124) has a drain (125) which is designed to drain the coating mass (210) collected by means of the collection container (124).

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