US 12,187,559 B2
Powder supply device
Tomonori Seki, Aichi (JP)
Assigned to TSUKASA CO., LTD., Aichi (JP)
Filed by TSUKASA CO., LTD., Aichi (JP)
Filed on Mar. 29, 2023, as Appl. No. 18/192,148.
Application 18/192,148 is a continuation of application No. PCT/JP2021/040292, filed on Nov. 1, 2021.
Claims priority of application No. 2020-184019 (JP), filed on Nov. 3, 2020.
Prior Publication US 2023/0227277 A1, Jul. 20, 2023
Int. Cl. B65G 69/18 (2006.01); B65B 1/28 (2006.01); B65B 1/36 (2006.01); B65G 65/32 (2006.01)
CPC B65G 69/186 (2013.01) [B65B 1/28 (2013.01); B65B 1/36 (2013.01); B65G 65/32 (2013.01); B65G 2201/04 (2013.01); B65G 2201/042 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A powder supply device, comprising:
a main body;
a plurality of stockers to be connected to the main body and to reserve powder therein; and
a dust collection unit,
wherein:
the stocker includes a charge port through which the powder is to be charged into the stocker, and a supplier which includes a supply port and which supplies the powder reserved inside the stocker through the supply port into a container with an opened upper side and for measuring the powder,
the dust collection unit includes a casing, an exhauster and a filtering member and is placed above the container,
the casing includes a ceiling portion and a lateral side portion, with a side opposing the ceiling portion being opened to form a lid-shaped configuration,
the lateral side portion includes a notched portion into which the supplier is to be inserted,
the filtering member is provided inside the casing and is positioned above the notched portion and below the ceiling portion in order to collect the powder,
the casing includes an inner space divided into a first region and a second region by the filtering member,
the first region is an area below the filtering member,
the second region is an area above the filtering member, the second region being an area which permits the exhauster to exhaust air inside the second region and permits an entry of air passing through the filtering member,
a gap is provided between the dust collection unit, and the container,
a size of the gap is dimensionally adjustable and determined according to a particle diameter of the powder, and
a speed of air flowing into the first region from an outside of the casing is changed depending on the size of the gap.