US 12,222,237 B2
Combination weighing device with multiple hoppers and modes
Mikio Kishikawa, Ritto (JP); Hiroe Konishi, Ritto (JP); Kazuro Ishiyama, Ritto (JP); Toru Morihira, Ritto (JP); and Ryoji Nishimura, Ritto (JP)
Assigned to Ishida Co., Ltd., Kyoto (JP)
Filed by Ishida Co., Ltd., Kyoto (JP)
Filed on Jan. 11, 2022, as Appl. No. 17/572,977.
Claims priority of application No. 2021-003316 (JP), filed on Jan. 13, 2021; and application No. 2021-035539 (JP), filed on Mar. 5, 2021.
Prior Publication US 2022/0221329 A1, Jul. 14, 2022
Int. Cl. G01G 19/393 (2006.01)
CPC G01G 19/393 (2013.01) 10 Claims
OG exemplary drawing
 
1. A combination weighing device that performs combination weighing of at least two different articles, the device comprising:
a plurality of weighing hoppers that temporarily retain the articles and acquire weighing values of the retained articles before discharging the articles downstream;
a plurality of booster hoppers that are arranged downstream of the weighing hoppers and temporarily retain the articles discharged from the weighing hoppers before discharging the articles downstream;
a receiver that receives the articles discharged from the weighing hoppers or the booster hoppers; and
a controller that performs combination weighing on the basis of the acquired weighing values and discharges the articles constituting a target from the weighing hoppers or the booster hoppers, wherein
the weighing hoppers and the booster hoppers are divided into at least two groups on the basis of types of the articles,
the controller sets each of the groups to either a first mode or a second mode on the basis of the types of the articles,
in the group set to the first mode, the articles retained in a first weighing hopper are discharged to the receiver via a first booster hopper, and
in the group set to the second mode, the articles retained in a second weighing hopper are discharged to either a second booster hopper or the receiver.