US 12,281,705 B2
Rotating-shaft seal and vacuum type component transfer apparatus using the same
Hee Jang Rhee, Gunpo-si (KR)
Assigned to SEALINK CORP., Seoul (KR)
Filed by SEALINK CORP., Seoul (KR)
Filed on Jul. 20, 2021, as Appl. No. 17/380,332.
Application 17/380,332 is a continuation of application No. PCT/KR2020/018246, filed on Dec. 14, 2020.
Claims priority of application No. 10-2020-0076583 (KR), filed on Jun. 23, 2020.
Prior Publication US 2021/0396318 A1, Dec. 23, 2021
Int. Cl. F16J 15/43 (2006.01); B65G 39/09 (2006.01)
CPC F16J 15/43 (2013.01) [B65G 39/09 (2013.01)] 10 Claims
OG exemplary drawing
 
1. 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 a component is adsorbed or separated according to rotation of the roller,
wherein the one or more fluid ports comprise one or more pressure ports and one or more vacuum ports,
a roller hole of the roller communicating with the one or more vacuum ports adsorb the component to the roller, and
a roller hole of the roller communicating with the one or more pressure ports separates the component from the roller via pressure, and
wherein the housing comprises an area expansion groove communicating with the one or more pressure ports or the one or more vacuum ports and provided along an inner circumferential surface of the housing.