Rotating-shaft seal and vacuum type component transfer apparatus using the same
AssigneeSealink Corp.
InventorHee Jang RHEE
Life of this patent
Estimating the term…
Abstract
Provided is a component transfer device. The component transfer device includes: a hollow housing provided with, along an outer diameter thereof, one or more fluid ports forming vacuum or pressure; a shaft provided rotatably with respect to the housing inside the housing, and provided with, on an outer diameter thereof, a plurality of communication holes for selectively communicating with the one or more fluid ports according to a rotation location; and a roller fixed to the shaft and rotating together with the shaft, and provided with, on an outer diameter thereof, a plurality of roller holes communicating in response to locations of the plurality of communication holes.
Claims18
A component transfer device comprising:
- a hollow housing provided with, along an outer diameter thereof, one or more fluid ports forming vacuum or pressure;
- a shaft provided rotatably with respect to the housing inside the housing, and provided with, on an outer diameter thereof, a plurality of communication holes for selectively communicating with the one or more fluid ports according to a rotation location;
- and
- a roller fixed to the shaft and rotating together with the shaft, and provided with, on an outer diameter thereof, a plurality of roller holes communicating in response to locations of the plurality of communication holes,
- wherein the plurality of communication holes are provided along a circumferential direction of the shaft,
- wherein the roller is attached to and disposed next to the shaft in an axial direction of the shaft, and
- wherein a component is adsorbed or separated according to rotation of the roller.
A rotation shaft seal for sealing a space between a rotation shaft and a housing accommodating the rotation shaft, the rotation shaft seal comprising:
- a pair of circumferential direction seals for sealing the space between the housing and the rotation shaft;
- and
- an axial direction seal provided in an axial direction of the shaft to be perpendicular to the pair of circumferential direction seals between the pair of circumferential direction seals, and separately sealing the shaft in a plurality of areas in a circumferential direction.
Dependencies are inferred from the claim text.