US 11,724,427 B2
Plasticizing apparatus, injection molding apparatus, and three-dimensional modeling apparatus
Hidenobu Maruyama, Azumino (JP); and Kenta Anegawa, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by Seiko Epson Corporation, Toyko (JP)
Filed on May 26, 2021, as Appl. No. 17/330,595.
Claims priority of application No. 2020-092197 (JP), filed on May 27, 2020.
Prior Publication US 2021/0370566 A1, Dec. 2, 2021
Int. Cl. B29C 45/60 (2006.01); B29C 45/62 (2006.01); B29C 45/74 (2006.01); B29C 45/47 (2006.01); B33Y 40/10 (2020.01); B29C 64/209 (2017.01); B29C 64/314 (2017.01); B33Y 30/00 (2015.01); B29C 64/295 (2017.01)
CPC B29C 45/60 (2013.01) [B29C 45/47 (2013.01); B29C 45/62 (2013.01); B29C 45/74 (2013.01); B29C 64/209 (2017.08); B29C 64/295 (2017.08); B29C 64/314 (2017.08); B33Y 30/00 (2014.12); B33Y 40/10 (2020.01)] 6 Claims
OG exemplary drawing
 
1. A plasticizing apparatus comprising:
a drive motor;
a rotor rotated by the drive motor and having a groove-forming surface provided with a groove;
a barrel facing the groove-forming surface and having a communication hole;
an enclosure that accommodates the rotor;
a heating section that heats a material supplied to a portion between the rotor and the barrel;
a wear suppressor provided in at least one of the portion between the rotor and the barrel and a portion between the rotor and the enclosure; and
a lid member provided with a seal groove and a planar surface and a seal member disposed in the seal groove,
wherein when the wear suppressor is provided between the rotor and the barrel, the wear suppressor is fixed to at least one of the rotor and the barrel and has a Vickers hardness higher than a Vickers hardness of the at least one of the rotor and the barrel, to which the wear suppressor is fixed,
wherein when the wear suppressor is provided between the rotor and the enclosure, the wear suppressor is fixed to at least one of the rotor and the enclosure and has a Vickers hardness higher than a Vickers hardness of the at least one of the rotor and the enclosure to which the wear suppressor is fixed,
the enclosure includes a channel groove provided along a circumferential direction of the rotor,
the lid member is disposed so that the planar surface covers the channel groove to define a refrigerant channel along which a refrigerant flows and the seal groove is disposed along the channel groove, and
the seal member includes a planar section and a protruding stripe section and is disposed in the seal groove to seal the refrigerant channel so that the planar section is in contact with a bottom surface of the seal groove and the protruding stripe section is in contact with a surface of the enclosure that is a surface along the channel groove.