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DE-102023117179-B4 - Device for maintaining the belt tension of a belt material for a cleaning device, cleaning device, robot with a cleaning device, processing station with a cleaning device

DE102023117179B4DE 102023117179 B4DE102023117179 B4DE 102023117179B4DE-102023117179-B4

Abstract

Device (10) for maintaining the belt tension of a belt material (BM), in particular a cleaning fleece, for a cleaning device (100) with at least one support unit (11) and a guide unit (12) arranged on the support unit (11), wherein the support unit (11) comprises at least one first and one second fixed deflection means (13, 14) and the guide unit (12) comprises at least one first and one second movable deflection means (15, 16) which are movable with the guide unit (12) relative to the support unit (11) along a longitudinal axis (L), wherein - the second movable deflection means (16) and the first fixed deflection means (13) are arranged at a distance A from each other, and - the first movable deflection means (15) and the second fixed deflection means (14) are arranged at a distance B from each other, and - the guide unit (12) is arranged so that it can be moved on the carrier unit (11) such that the distances A and B can be changed by the same amount by moving the guide unit (12) along the longitudinal axis (L), characterized in that the first movable deflecting means (15) is arranged along the longitudinal axis (L) and the second movable deflecting means (16) is arranged offset to the longitudinal axis (L), in particular spaced apart from the longitudinal axis (L).

Inventors

  • Christoph Siebenborn
  • Marc Schneider

Assignees

  • THYSSENKRUPP AG
  • thyssenkrupp Automotive Body Solutions GmbH

Dates

Publication Date
20260513
Application Date
20230629

Claims (20)

  1. Device (10) for maintaining the belt tension of a belt material (BM), in particular a cleaning fleece, for a cleaning device (100) with at least one carrier unit (11) and a guide unit (12) arranged on the carrier unit (11), wherein the carrier unit (11) comprises at least one first and one second stationary deflection means (13, 14) and the guide unit (12) comprises at least one first and one second movable deflection means (15, 16) which are movable with the guide unit (12) relative to the carrier unit (11) along a longitudinal axis (L), wherein - the second movable deflection means (16) and the first stationary deflection means (13) are arranged at a distance A from each other, and - the first movable deflection means (15) and the second stationary deflection means (14) are arranged at a distance B from each other, and - the guide unit (12) is arranged movably on the carrier unit (11) is characterized in that the distances A and B can be changed by the same amount by moving the guide unit (12) along the longitudinal axis (L), characterized in that the first movable deflecting means (15) is arranged along the longitudinal axis (L) and the second movable deflecting means (16) is arranged offset to the longitudinal axis (L), in particular spaced apart from the longitudinal axis (L).
  2. facility (10) according Claim 1 , characterized in that the guide unit (12) comprises a retaining element (17), wherein the first and second movable deflecting means (15, 16) are each arranged at one end of the retaining element and the distance between the first and second movable deflecting means (15, 16) is unchangeable.
  3. Device (10) according to one of the preceding claims, characterized in that the first movable deflecting means (15) for cleaning a surface projects at least partially beyond the holding element (17).
  4. Device (10) according to one of the preceding claims, characterized in that the guide unit (12) is a linear unit (18), into which in particular a pneumatic element, which resiliently supports the holding element (17).
  5. Device (10) according to one of the preceding claims, characterized in that the deflecting means (13, 14, 15, 16) are arranged relative to each other such that the belt material (BM) surrounds the deflecting means (13, 14, 15, 16) during operation at a wrap angle of 70° to 200°, in particular 180°.
  6. Device (10) according to one of the preceding claims, characterized in that the deflecting means (13, 14, 15, 16) are arranged, in particular, lying on a common plane in order to guide the belt material (BM) without offset.
  7. Device (10) according to one of the preceding claims, characterized in that the distance of the deflecting means (13, 14, 15, 16) to the longitudinal axis (L) is unchangeable, in particular fixed.
  8. Device (10) according to one of the preceding claims, characterized in that the second stationary deflecting means (14) has a distance relative to the longitudinal axis (L) which corresponds to the distance of the second movable deflecting means (16) from the longitudinal axis (L).
  9. Device (10) according to one of the preceding claims, characterized in that the first stationary deflecting means (13) has a distance relative to the longitudinal axis (L) which is greater than the distance of the second movable (16) deflecting means to the longitudinal axis (L).
  10. Device (10) according to one of the preceding claims, characterized in that the carrier unit (11) comprises a further, in particular a third, fixed deflection means (19) which has a distance relative to the longitudinal axis (L) corresponding to the distance of the first fixed deflection means (13) from the longitudinal axis (L).
  11. Device (10) according to one of the preceding claims, characterized in that the deflection means (13, 14, 15, 16, 19) are designed as deflection rollers, each of which is rotatably mounted about a roller longitudinal axis.
  12. Cleaning device (100) for cleaning a surface with a device for maintaining the belt tension of a belt material (BM) (10), comprising at least one support unit (11) and a guide unit (12) arranged on the support unit (11), wherein the support unit (11) comprises at least one first and one second stationary deflection means (13, 14) and the guide unit (12) comprises at least one first and one second movable deflection means (15, 16) which are movable with the guide unit (12) relative to the support unit (11) along a longitudinal axis (L), wherein - the second movable deflection means (16) and the first stationary deflection means (13) are arranged at a distance A from each other, and - the first movable deflection means (15) and the second stationary deflection means (14) are arranged at a distance B from each other, and - the guide unit (12) is movably mounted on the support unit (11) is arranged such that the distances A and B can be changed by the same amount by moving the guide unit (12) along the longitudinal axis (L), and with at least one spool (20), in particular a first spool, for supplying the tape material (BM), which is arranged on the carrier unit (11) and detachably connected to it, wherein the tape material (BM) can be guided or guided from the at least one spool (20) via the device (10), in particular the deflecting means of the carrier and guide unit (13, 14, 15, 16, 19).
  13. Cleaning device (100) after Claim 12 , characterized in that the guide unit (12) of the device (10) comprises a holding element (17), wherein the first and second movable deflecting means (15, 16) are each arranged at one end of the holding element and the distance between the first and second movable deflecting means (15, 16) is unchangeable.
  14. Cleaning device (100) after Claim 12 or 13 , characterized in that the device (10) is a device according to one of the Claims 1 until 11 is.
  15. Cleaning device (100) according to one of the Claims 12 until 14 , characterized in that the cleaning device has at least one further coil (21), in particular a second coil, wherein the two coils, in particular the first and second coils (20, 21), are arranged next to each other, in particular lying on a common plane, wherein the coils (20, 21) are each rotatably mounted about a longitudinal axis of the coil for receiving and/or discharging the tape material (BM).
  16. Cleaning device (100) according to one of the Claims 12 until 15 , characterized in that the carrier unit (11) has at least one drive means (22), in particular a drive roller, which is arranged between one of the two coils, in particular the first or second coil (20, 21), and the device (10) to convey the strip material (BM) during operation.
  17. Cleaning device (100) according to one of the Claims 12 until 16 , characterized in that the carrier unit (11) has at least one clamping means (23), in particular a clamping roller, which is movable relative to the drive means (22), wherein the clamping means (23) presses the belt material (23) against the drive means (22) during operation.
  18. Cleaning device (100) according to one of the Claims 12 until 17 , characterized in that at least one sensor (24), in particular an end position sensor, is arranged near the coils, in particular the first and/or second coil (20, 21), for monitoring the fill level of the coils (20, 21).
  19. Robot (200), in particular articulated arm robot, with at least one cleaning device (100) according to one of the Claims 12 until 18 and at least one robot hand (210) on which the cleaning device (100) is arranged, so that it can be moved along a stationary component.
  20. Stationary processing station with at least one cleaning device (100) according to one of the Claims 12 until 18 , wherein the cleaning device (100) is arranged at the processing station such that a component which is arranged on a movable device, in particular on a robot, is movable along the cleaning device (100).

Description

The invention relates to a device for maintaining the belt tension of a belt material for a cleaning device, a cleaning device, a robot with a cleaning device and a processing station with a cleaning device. To apply a material, such as a gasket, to a component surface, the surface often needs to be cleaned beforehand. This cleaning is preferably carried out using an automated process with a belt material, such as a cleaning fleece. The belt material must therefore maintain a specific tension during the cleaning process. Furthermore, it must be able to compensate for component irregularities. This is often achieved through a complex mechanical system. From the DE 42 04 550 A1 A generic device for controlling the tension of a moving web of material is known. It is provided that a material, such as paper, plastic, or metal foil, is supplied from a feed roll and fed to the device for processing. By guiding the material over stationary and movable rollers, the movement of the rollers is intended to counteract any sudden drop in tension. A similar device is known from… US 5 050 812 A known. The invention is therefore based on the objective of providing a device for maintaining the strip tension of a strip material, which enables the maintenance of a specific strip tension as well as tolerance compensation through a simple design. The invention is further based on the objective of providing a cleaning device, a robot with such a cleaning device, and a processing station with such a cleaning device. According to the invention, this problem is solved with regard to the device for maintaining the belt tension of a belt material by the subject matter of claim 1. With regard to the cleaning device, the robot and the processing station, the aforementioned problem is solved in each case by the subject matter of claim 12 (cleaning device) and claims 19 (robot) or 20 (processing station). Specifically, the problem is solved by a device for maintaining the belt tension of a belt material, in particular a cleaning fleece, for a cleaning device, comprising at least one carrier unit and a guide unit arranged on the carrier unit. The carrier unit includes at least one first and one second stationary deflection element, and the guide unit includes at least one first and one second movable deflection element, which are movable relative to the carrier unit along a longitudinal axis. The second movable deflection element and the first stationary deflection element are arranged at a distance A from each other. The first movable deflection element and the second stationary deflection element are arranged at a distance B from each other. The guide unit is movably arranged on the carrier unit such that the distances A and B can be changed by the same amount by moving the guide unit along the longitudinal axis. The invention has several advantages. By arranging the first and second fixed deflection elements on the carrier unit and the first and second movable deflection elements on the guide unit, which is movable relative to the carrier unit along a longitudinal axis, it is possible to maintain a specific, and in particular constant, strip tension of the strip material guided through the device. Since the guide unit is movably arranged on the carrier unit such that the distances A and B can be changed by the same amount by moving the guide unit along the longitudinal axis, the strip length guided through the device during operation remains constant. Maintaining a constant strip length advantageously results in the maintenance of a constant strip tension. In the context of this invention, distance A describes the distance parallel to the longitudinal axis that forms between two imaginary lines perpendicular to the longitudinal axis. With respect to distance A, one imaginary line passes through the center point of the second movable deflecting element, and the other passes through the center point of the first stationary deflecting element. Distance B is defined in an equivalent manner. The device according to the invention further enables the compensation of component irregularities by arranging the first movable deflection element on the guide unit. Since the first movable roller, which is preferably brought into contact with the component surface for cleaning, is movable along the longitudinal axis perpendicular to the component surface, component irregularities can be easily compensated for. Furthermore, it is possible to compensate not only for component tolerances but also for positional tolerances and To compensate for geometric changes that result, for example, from the guidance of the device along a component. The invention further has the advantage that the belt tension during conveying of the belt material is preferably maintained at a constant level solely by the arrangement of the deflecting means according to the invention. The use of additional belt tensioners or a complex mechanism to maintain a constant belt tension is