IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0892530
(2004-07-15)
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우선권정보 |
DE-103 31 946(2003-07-15) |
발명자
/ 주소 |
- Arnold,Gregor
- L체ttringhaus Henkel,Andreas
- Klein,J체rgen
- Behle,Stephan
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출원인 / 주소 |
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대리인 / 주소 |
Ohlandt, Greeley, Ruggiero &
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인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
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The invention relates to an apparatus for coating hollow bodies, e.g. plastic drinks bottles. It is an object of the invention to provide an apparatus for treating workpieces which operates reliably and with low maintenance, can be flexibly adapted to the user's requirements or to the requirements o
The invention relates to an apparatus for coating hollow bodies, e.g. plastic drinks bottles. It is an object of the invention to provide an apparatus for treating workpieces which operates reliably and with low maintenance, can be flexibly adapted to the user's requirements or to the requirements of the desired process sequence, and which allows efficient evacuation. The apparatus according to the invention comprises at least one treatment device (101) for receiving at least one workpiece, a rotor on which the treatment device is arranged, a fluid rotary leadthrough for feeding at least one fluid onto the rotor and/or for discharging at least one fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, which at least in sections are sealed off from one another, and the journal being arranged rotatably in the sleeve. The proposed radial arrangement is particularly unsusceptible to faults and entails little maintenance.
대표청구항
▼
The invention claimed is: 1. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body therein; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discha
The invention claimed is: 1. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body therein; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, wherein the journal and the sleeve are sealed off from one another, and wherein the journal is arranged rotatably in the sleeve. 2. The apparatus as claimed in claim 1, wherein the journal has a fluid passage through which the fluid is fed to the treatment device and/or the fluid is discharged from the treatment device. 3. The apparatus as claimed in claim 2, wherein the journal and the sleeve each have a line connection, the line connections being connected to one another via the fluid passage so that a flow of the fluid is made possible. 4. The apparatus as claimed in claim 3, wherein the journal has at least one passage with an axial passage section and a radial passage section, the radial passage section opening out in a lateral surface of the journal. 5. The apparatus as claimed in claim 4, wherein the sleeve or the journal has at least one annular passage around the journal, and wherein the axial passage section, the radial passage section and the at least one annular passage form a fluid passage. 6. The apparatus as claimed in claim 5, further comprising at least a first seal and a second seal, the first and second seal being arranged axially offset on a first side and a second side of the at least one annular passage, and wherein the first and second seals are designed as a ring seal. 7. The apparatus as claimed in claim 6, wherein the first seal and the second seal are oil lubricated seals. 8. The apparatus as claimed in claim 1, wherein the journal is substantially in the form of a cylinder and the sleeve is substantially in the form of a hollow cylinder, and wherein the journal is arranged concentrically in the sleeve so that the fluid rotary leadthrough extends along a rotor axis of the rotor. 9. The apparatus as claimed in claim 1, wherein the journal is secured to the rotor so that the journal rotates with the rotor. 10. The apparatus as claimed in claim 1, further comprising sealant lines in the fluid rotary leadthrough. 11. The apparatus as claimed in claim 1, wherein the sleeve has a plurality of radially arranged line connections distributed in a star shape, and wherein the treatment device comprises a plurality of treatment devices each being assigned a different one of the plurality of radially arranged line connections. 12. The apparatus as claimed in claim 1, further comprising a plurality of fluid passages being defined in the journal by a plurality of axial passage sections and a plurality of radial passage sections, the plurality of radial passage sections opening out in a lateral surface of the journal and the plurality of axial passage sections being offset in the manner of a ring. 13. The apparatus as claimed in claim 1, wherein the treatment device, in operation, passes through at least one evacuation phase and at least one coating phase, the treatment device, during the evacuation phase, being connected via a first fluid passage to a first vacuum pump, and during the coating phase being connected via a second fluid passage to a second vacuum pump. 14. The apparatus as claimed in claim 1, further comprising a plurality of annular passages axially offset with respect to one another. 15. The apparatus as claimed in claim 14, further comprising a ring seal between the plurality of annular passages. 16. The apparatus as claimed in claim 1, further comprising a valve arrangement for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor. 17. The apparatus as claimed in claim 1, wherein the fluid rotary leadthrough has a plurality of gas feed passages and a plurality of evacuation passages. 18. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, wherein the journal and the sleeve are sealed off from one another, wherein the journal is arranged rotatably in the sleeve, and wherein the sleeve is secured to the rotor so that the sleeve rotates with the rotor. 19. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, wherein the journal and the sleeve are sealed off from one another, wherein the journal is arranged rotatably in the sleeve, wherein the journal has a fluid passage through which the fluid is fed to the treatment device and/or the fluid is discharged from the treatment device, wherein the journal and the sleeve each have a line connection, the line connections being connected to one another via the fluid passage so that a flow of the fluid is made possible, wherein the journal has at least one passage with an axial passage section and a radial passage section, the radial passage section opening out in a lateral surface of the journal, wherein the sleeve or the journal has at least one annular passage around the journal, and wherein the axial passage section, the radial passage section and the at least one annular passage form a fluid passage, and wherein the at least one annular passage is designed to run all the way around the journal, and wherein the line connections of the journal and the sleeve are continuously connected to one another during rotation of the rotor. 20. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, wherein the journal and the sleeve are sealed off from one another, wherein the journal is arranged rotatably in the sleeve, and wherein the fluid rotary leadthrough includes at least one gas feed passage and at least one evacuation passage. 21. The apparatus as claimed in claim 20, wherein the evacuation passage has an internal diameter from 25 mm to 250 mm, and the gas feed passage has an internal diameter from 5 mm to 50 mm. 22. An apparatus for plasma coating of a hollow body with a fluid, comprising: a treatment device for receiving the hollow body; a rotor on which the treatment device is arranged; and a fluid rotary leadthrough for feeding the fluid onto the rotor and/or for discharging the fluid from the rotor, the fluid rotary leadthrough having a journal and a sleeve, wherein the journal and the sleeve are sealed off from one another, wherein the journal is arranged rotatably in the sleeve, and wherein the treatment device is evacuated by one or more vacuum pumps, the one or more vacuum pumps being arranged on the rotor.
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