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US 11,898,897 B2Granted
Combination weighing device
AssigneeYamato Scale Company, Limited
InventorsShinya Yokoyama, Yuki Shimizu
Life of this patent
Estimating the term…
Abstract
When there is currently no article at an upstream end of a trough of a downstream linear feeder, an upstream linear feeder is driven to operate until any article detected by an upstream article detector. In case no article is still detectable by the upstream article sensor when a predetermined period of time is passed after the upstream linear feeder starts to be driven, the upstream linear feeder is driven to operate by an increased vibration strength based on the assumption that an article(s) is being jammed or articles are being stuck together on an upstream side of the upstream linear feeder.
Claims10
A combination weighing device, comprising:
- at least two linear feeders including an upstream linear feeder and a downstream linear feeder, the linear feeders being disposed to transport an article from an upstream side to a downstream side in a direction of transport;
- a controller in charge of drive controls of the linear feeders;
- and
- an upstream article detector that detects the article currently present at an upstream end of a trough of the downstream linear feeder in the direction of transport,
- the controller being configured to, when the upstream article detector is not detecting the article, drive the upstream linear feeder to operate until the article is detected by the upstream article detector,
- the controller being configured to, when a predetermined period of time is passed after the upstream linear feeder starts to be driven, drive the upstream linear feeder to operate by an increased vibration strength.
3 more elements
A combination weighing device, comprising:
- at least two linear feeders including an upstream linear feeder and a downstream linear feeder, the linear feeders being disposed to transport an article from an upstream side to a downstream side in a direction of transport;
- a controller in charge of drive controls of the linear feeders;
- an upstream article detector that detects the article currently present at an upstream end of a trough of the downstream linear feeder in the direction of transport;
- and
- a downstream article detector that detects the article currently present on the downstream side relative to the upstream article detector in the direction of transport,
- the controller being configured to, when the upstream article detector is not detecting the article, drive the upstream linear feeder to operate until the article is detected,
- the controller being configured to drive the downstream linear feeder to operate in a manner that the article is transported toward the downstream side,
- the controller being configured to start to drive the upstream linear feeder when the article is not detected by the downstream article detector over a predetermined period of time after the controller drives the upstream linear feeder to operate until the article is detected by the upstream article detector and then suspends the operation of the upstream linear feeder.
5 more elements
A combination weighing device, comprising:
- at least two linear feeders including an upstream linear feeder and a downstream linear feeder, the linear feeders being disposed to transport an article from an upstream side to a downstream side in a direction of transport;
- a controller in charge of drive controls of the linear feeders;
- an upstream article detector that detects the article currently present at an upstream end of a trough of the downstream linear feeder in the direction of transport;
- and
- a downstream article detector that detects the article currently present on the downstream side relative to the upstream article detector in the direction of transport,
- the controller being configured to, when the upstream article detector is not detecting the article, drive the upstream linear feeder to operate until the article is detected by the upstream article detector,
- the controller being configured to, when a first predetermined period of time is passed after the upstream linear feeder starts to be driven, drive the upstream linear feeder to operate by an increased vibration strength,
- the controller being configured to drive the downstream linear feeder to operate in a manner that the article is transported toward the downstream side,
- the controller being configured to start to drive the upstream linear feeder to operate when the article is not detected by the downstream article detector over a second predetermined period of time after the controller drives the upstream linear feeder to operate until the article is detected by the upstream article detector and then suspends the operation of the upstream linear feeder.
6 more elements
Dependencies are inferred from the claim text.