A combination weighing device includes: a conveyance unit; a plurality of first hoppers each receiving the article; a plurality of second hoppers detachably provided on a downstream side of the plurality of first hoppers, and each receiving the article; a weighing unit weighing the article held in each of the plurality of second hoppers; and a control unit performing combination calculation and discharging the article from the second hopper corresponding to the combination. The control unit performs combination calculation based on a weighing value corresponding to mass of the article held in each of the plurality of second hopper, and continues combination calculation based on a weighing value corresponding to mass of the article held in each of the second hoppers other than a part of the second hoppers in a state in which the part of the plurality of second hoppers has been removed.

Method for the instantaneous self-calibration of the dose of coffee, for a grinder-doser apparatus with electronic control provided with a weighing means and with a granulometry adjusting means with a warning microswitch. The method provides: a first setting of the nominal dose with temporary grinding times; a second setting of the tolerance and reliability ranges of the dispensed doses, for the purpose of recalculation; the automatic control of the weight of each actually dispensed dose; the automatic recalculation of the grinding times according to an ordinary calculation logic, when one detects three consecutive out-of-tolerance doses all within the positive or negative reliability range, or according to a forced calculation logic when the microswitch detects a granulometry variation; automatic calibration of the apparatus according to the recalculated times.

A conveyance mechanism (1) includes: a trough (10) that conveys an article; a support member (20) to which the trough is detachably coupled, the support member including a vibrator that vibrates the trough; and a coupling member (30) that couples the trough and the support member. The trough includes a first abutting member (11) that is located on a back side of a conveyance face for conveyance of the article and abuts on the support member. The support member includes a second abutting member (21) that is plate-shaped and has a second circumferential edge (22) vertically identical to a first circumferential edge (12) that is a circumferential edge of the first abutting member. The coupling member couples the trough and the support member by fastening the first abutting member and the second abutting member with the first circumferential edge and the second circumferential edge in superposition. The second abutting member (21) is provided with a through hole (23) passing through the second abutting member.

A poultry part harvesting, sorting, and packaging apparatus and system utilizes an arrangement of hoppers to batch poultry parts removed by cut-up machines and deposits the batches onto a transportation conveyor. Each batch is contained within a separate zone on the conveyor, and the system tracks the location of batches and open spaces on the conveyor to deliver the batches to user defined locations.