To provide an aggregate weighing device that can weigh the aggregate efficiently and satisfactorily by solving problems in weighting accuracy, weighing time or the like.
An aggregate weighing device of the present invention includes: a gravel storage bin 4 for storing gravel to generate freshly mixed concrete; a weighing gate 9 for opening and closing a lower end discharge port 26 of the gravel storage bin 4; an actuator 28 for driving the opening and closing action of the weighing gate 9; a control panel 32 for controlling the actuator 28; and a weighing hopper 12 for weighing the gravel discharged from the gravel storage bin 4 by opening the weighing gate 9 with the actuator 28. The control panel 32 controls the actuator 28 to transfer the weighing gate 9 from a fully opened state to a first half-opening state, which has an opening area narrower than the opening area in this state, when a weighing value of the gravel by the weighing gate 9 gets closer to a predetermined target weighing value after fully opening the weighing gate 9.
UEYAMA HIDEYUKI
IMAI TADASHI
| JPS61284614A | 1986-12-15 | |||
| JPS58187416U | 1983-12-13 | |||
| JPH0739928U | 1995-07-18 |