Bell plate, atomizer-type cleaning device, and associated operating method

Patent metadata

Field	Value
Publication number	US-2025161970-A1
Application number	US-202519029137-A
Country	US
Kind code	A1
Filing date	Jan 17, 2025
Priority date	Mar 27, 2019
Publication date	May 22, 2025
Grant date	—

Abstract

The disclosure relates to a bell plate for a rotary atomizer for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component). The bell plate according to the disclosure comprises a metallic base body and a transponder which can be read out wirelessly and is integrated in the bell plate. The disclosure provides that the transponder is arranged on the front side in the base body or is embedded in the outer outer circumferential surface of the bell plate, which facilitates the read-out of the transponder. Furthermore, the disclosure comprises a suitably adapted atomizer cleaning device having an antenna for reading out the transponder in the bell plate. Finally, the disclosure also comprises a correspondingly adapted operating method.

First claim

1 . A bell plate for a rotary atomizer, comprising:
a base body; and a transponder which can be read out wirelessly and is integrated in the bell plate, wherein the transponder is secured to a front side of the base body of the bell plate.

2 . The bell plate according to claim 1 , wherein the base body is made of metal.

3 . The bell plate according to claim 2 , further comprising:
an axially extending central bore in the base body for the passage of a paint nozzle for the axial supply of a coating agent to be applied; an annular spray-off edge on the base body for spraying off the atomized coating agent from the spray-off edge; a frontal overflow surface on the base body extending outwardly from the central bore to the spray-off edge; a distributor disc which deflects the axially and centrally supplied coating agent at least partially radially outwardly onto the overflow surface and to the spray-off edge; and a distributor disc receptacle mounted in the base body, the distributor disc being mounted on the distributor disc receptacle.

4 . The bell plate according to claim 3 , wherein at least one of the distributor disc and the distributor disc receptacle covers the transponder on the front side in order to protect the transponder from contamination by the coating agent, and at least one of the distributor disc and the distributor disc receptacle is made of plastic so as not to electromagnetically shield the transponder.

5 . The bell plate according to claim 3 , wherein the transponder is arranged radially outside the distributor disc receptacle.

6 . The bell plate according to claim 1 , wherein an annular space is arranged in the base body of the bell plate on the front side, the annular space running radially outside a distributor disc receptacle, and the transponder is arranged in the annular space.

7 . The bell plate according to claim 6 , wherein the transponder has an antenna which is arranged in the annular space of the bell plate.

8 . The bell plate according to claim 7 , wherein the antenna is designed as follows:
a) as a closed ring; b) as a dipole with one or two legs; c) with several circular segments; d) rectilinear; or e) meander-shaped.

9 . The bell plate according to claim 7 , wherein the antenna is adapted to operate inductively.

10 . The bell plate according to claim 7 , wherein the antenna is adapted to operate with electromagnetic waves.

11 . The bell plate according to claim 7 , wherein the transponder has two different communication frequencies for wireless data transmission.

12 . The bell plate according to claim 7 , wherein
a) the annular antenna is inserted into an annular groove in the bell plate, b) a washer is inserted into the annular groove in the bell plate, which washer is located at least partially between the groove bottom of the annular groove and the transponder, c) the transponder is cast with the washer in the annular groove with a casting compound, d) the casting compound is non-metallic so as not to shield the transponder.

13 . The bell plate according to claim 12 , wherein the washer is substantially L-shaped in cross-section, while a first radial leg of the washer is located between the transponder and the groove bottom of the annular groove, while a second axial leg of the washer is located between the transponder and a radially inner groove flank of the annular groove.

14 . The bell plate according to claim 12 , wherein
a) the distributor disc receptacle closes off an annular groove, which is open at the front side, in a sealing manner at the front side, and b) a sealing ring is provided for sealing the annular groove, and c) the sealing ring is arranged in an annular sealing groove in the distributor disc receptacle and bears in a sealing manner against the base body of the bell plate.

15 . The bell plate according to claim 1 , wherein the base body includes an annular groove running coaxially with an axis of rotation of the bell plate and the transponder is secured in the annular groove, and wherein the annular groove is open towards the front side of the bell plate.

16 . The bell plate according to claim 1 , wherein the transponder is an active transponder with its own power supply or a passive transponder without its own power supply.

17 . The bell plate according to claim 1 , wherein the transponder is an RFID transponder which outputs an identification code when interrogated, and the transponder contains a readable identification code which identifies the bell plate.

18 . The bell plate according to claim 1 , wherein the transponder has a write memory.

19 . The bell plate according to claim 3 , wherein the base body includes an annular groove and the distributor disc receptacle closes off the annular groove securing the transponder therein.

Assignees

• Duerr Systems Ag

Inventors

• Buck Thomas
• Preuss Kevin
• Baumann Michael
• Herre Frank
• Seiz Bernhard
• Nolte Hans-Jürgen
• Luz Daniel

Classifications

• B25J11/008

  Manipulators for service tasks · CPC title

• B05B5/0407

  with a spraying edge, e.g. like a cup or a bell · CPC title

• B05B3/1042 Primary

  Means for connecting, e.g. reversibly, the rotating spray member to its driving shaft · CPC title

• B05B15/555 Primary

  discharged by cleaning nozzles · CPC title