A method for operating a mixing apparatus of a manufacturing plant comprises supplying multiple powdered products to the mixing apparatus. An inlet mass flow rate of the multiple powdered products into the mixing apparatus and a weight of the multiple powdered products in the mixing apparatus are measured. The multiple powdered products in the mixing apparatus are mixed to form a mixed product. The weight of the multiple powdered products in the mixing apparatus and an outlet mass flow rate of the mixed product from the mixing apparatus are predicted based on the measured inlet mass flow of the multiple powdered products. The predicted outlet mass flow rate of the mixed product from the mixing apparatus is corrected based on the measured weight of the multiple powdered products in the mixing apparatus. The mixed product is processed into final products

In a horizontal combination weighing device in which weighing units are arranged next to each other, a horizontally long base is equipped with the weighing units each including a weighing hopper and is supportably mounted to a support frame in a manner that the base is pivotable around a fulcrum vertically extending at lateral one end of the base.

In a horizontal combination weighing device in which weighing units are arranged next to each other, a horizontally long base is equipped with the weighing units each including a weighing hopper and is supportably mounted to a support frame in a manner that the base is pivotable around a fulcrum vertically extending at lateral one end of the base.

A combination weighing device is provided that discharges, from a hopper, an article oversupplied into and received by the hopper and that collects the article using the collection container. The combination weighing device includes an oversupplied article retainer disposed at a position on a discharge path for the article to be discharged from the hopper and collected by the collection container. The oversupplied article retainer has a collection chute and a blocking shutters and temporarily retains the article guided to flow downward using the collection chute and the blocking shutter.

A mounting device for mounting a screw feeder to a combination weigher allows an operator to mount a screw feeder to a motor unit assembly of a combination weigher by placing the screw feeder to the motor unit assembly such that the actual rotation of the motor ensures the actual mounting of the screw feeder to the motor unit.

A mounting device for mounting a screw feeder to a combination weigher allows an operator to mount a screw feeder to a motor unit assembly of a combination weigher by placing the screw feeder to the motor unit assembly such that the actual rotation of the motor ensures the actual mounting of the screw feeder to the motor unit.

The vibration strength of a linear feeder is changeable depending on whether an article is currently present at a downstream end of a trough of the linear feeder. When articles continue to be vibrationally transported, arriving continuously at the downstream end of the trough of the linear feeder, the vibration strength is set to a vibration strength suitable for discharge of the articles from the downstream end. When there is currently no article at the downstream end of the trough of the linear feeder, the vibration strength is set to a vibration strength suitable for transport of the articles to allow the articles that follow to swiftly arrive at the downstream end of the trough.

The vibration strength of a linear feeder is changeable depending on whether an article is currently present at a downstream end of a trough of the linear feeder. When articles continue to be vibrationally transported, arriving continuously at the downstream end of the trough of the linear feeder, the vibration strength is set to a vibration strength suitable for discharge of the articles from the downstream end. When there is currently no article at the downstream end of the trough of the linear feeder, the vibration strength is set to a vibration strength suitable for transport of the articles to allow the articles that follow to swiftly arrive at the downstream end of the trough.

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.

A combination weighing device is provided that includes a plurality of article suppliers disposed in juxtaposition with each other and adapted to transport and supply articles to a plurality of weighing units. The combination weighing device further includes an article transporter adapted to drop and supply the transported articles from a direction intersecting with a direction of transport of the articles by the article suppliers, and an article split-and-guide member adapted to split, drop and guide the articles in a direction of juxtaposition of the article suppliers.