Yamato Scale Company, Limited

Other

Shozo Kawanishi

Yamoto Scale Company

Kawanishi, Shozo

Hiroshi Higuchi

Taketoshi Okamura

Koichi Okita

Kazuo Usui

Masami Yamanaka

Tadashi Higuchi

Masatomi Tsuruoka

Yasutoshi Masuda

Akinari Okunosono

Mitsushi Nishikawa

Yoshitaka Mikata

Takaaki Kawashima

Takeyoshi Nagao

Hiroyuki Inami

Seiji Yamano

Kenichi Nakagawa

Kuninori Kozai

Shuichi Okabe

Atsushi Watanabe

Hirotsugu Kishimoto

A weighing apparatus includes a rough-charge weigher and a combination weigher. A plurality of weighing hoppers of the combination weigher are, when seen in a plan view, arranged in a manner to form a line that constitutes a part of a virtual circle. The plurality of weighing hoppers include a one-end weighing hopper disposed at one end of the line, an other-end weighing hopper disposed at the other end of the line, and a plurality of middle weighing hoppers arranged on the line between the one-end weighing hopper and the other-end weighing hopper. The rough-charge weigher is, when seen from the one-end weighing hopper and the other-end weighing hopper, disposed at an opposite side to the middle weighing hoppers, and at least a part of the rough-charge weigher is disposed inside the virtual circle or on the virtual circle.

Compact weighing apparatus including rough-charge weigher and combination weigher

When a combination calculator has selected both a first weighing hopper and a second weighing hopper corresponding to one feeding hopper, a controller drives a feeder so as to increase an amount of objects to be weighed that are held in the one feeding hopper, and then causes the one feeding hopper to discharge the objects to be weighed in both a first direction and a second direction concurrently to distribute the objects to be weighed to the first weighing hopper and the second weighing hopper that have been emptied.

Combination weigher having controlled distribution by bidirectional feeding hoppers

A weighing apparatus includes a rough-charge weigher and a combination weigher. The rough-charge weigher includes: a feeding device; a lower hopper configured to hold and discharge objects to be weighed that are fed from the feeding device; a feeding adjuster configured to feed the objects to be weighed from the feeding device to the lower hopper, and adjust an amount of the objects to be weighed that are fed to the lower hopper; and a weight sensor provided on either the feeding device or the lower hopper. A controller: continuously measures, by the weight sensor, a weight of the objects to be weighed that are fed by the feeding adjuster from the feeding device to the lower hopper; and at a point when the weight of the objects to be weighed that are fed to the lower hopper has reached the rough-charge weight, stops the feeding adjuster.

Weighing apparatus including rough-charge weigher and combination weigher

A combination weighing apparatus including a plurality of units arranged to form a circumference in a horizontal direction, wherein the plurality of units include weighing hoppers, each of which holds, weighs and discharges the object. The combination weighing apparatus comprises at least one small unit and at least one large unit, and: each of the weighing hoppers is a single-chamber weighing hopper or a double-chamber weighing hopper, the small unit includes the single-chamber weighing hopper and does not include the double-chamber weighing hopper, and the large unit includes the double-chamber weighing hopper and does not include the single-chamber weighing hopper; and/or some of the plurality of units include memory hoppers each of which is disposed below the weighing hopper, holds the objects discharged from the weighing hopper and discharges the objects, the small unit does not include the memory hopper, and the large unit includes the memory hopper.

Combination weighing apparatus including small and large units including weighing hoppers

A packer scale comprises a weighing hopper which is supplied with objects dropped from above, holds the objects for a specified period and discharges the objects downward; first to fourth load cells having shaft-like load application sections, respectively; and first to fourth suspending units which suspend the weighing hopper such that the weighing hopper is mounted to the load application sections of the first to fourth load cells; the weighing hopper includes a hopper body having a tubular shape with a rectangular cross-section, in a plan view; and the first to fourth suspending units are mounted to an upper portion of the hopper body, in locations which are in the vicinity of corner portions of the tubular shape.

Packer scale having a hopper body suspended by suspending units

A weighing apparatus comprise a large throw-in weighing hopper which is fed with objects having a weight which is less than a target weight of the objects, holds the objects which are weighed, and discharges the weighed objects; a plurality of medium throw-in weighing hoppers which are respectively fed with the objects having weights adjusted with a different ratio, hold the objects for which combination calculation is performed based on the weights of the objects, and discharge the objects based on a result of the combination calculation; and a loss-in weight hopper which is used in loss-in weighing and performs loss-in discharge of the objects.

Weighing apparatus having a loss-in weight hopper

A weighing system () comprises a platform scale () on which a container containing objects is placed; and a hand-operated combination weigherincluding a plurality of weighing trayson which the objects are put; wherein a controller of the weighing system () derives a target weight of the objects in the combination weigher () using a weight of the container which is weighed by the platform scale (); and the controller selects a combination of the weighing trays () so that a combination weight of the objects on the weighing trays () falls within an allowable range of the target weight.

Hand-operated weighing system and weighing work method

A combination weigher comprises a collecting conveyor which conveys objects and discharges the objects; a plurality of weighing conveyors configured to convey the objects fed thereto and discharge the objects, to feed the objects to the collecting conveyor apparatus; a plurality of weight sensors for measuring weights of the objects held on the weighing conveyors; and a control section which finds a discharge combination including a combination of the weighing conveyors holding the objects in which a total weight thereof falls within a target weight range, based on the measured weight values of the weight sensors and activates the weighing conveyors selected to make up the discharge combination to convey the objects on the weighing conveyors and discharge the objects, wherein a conveying speed of the collecting conveyor apparatus is set higher than a conveying speed of the weighing conveyors.

Combination weigher

A link apparatus supplies objects discharged from a weighing machine to package bags being conveyed successively at a high speed and comprises plural hopper groups each including n hoppers; and plural arms configured to convey an associated hopper group along a revolving path including a first area where the objects are supplied to the hopper group and a second area under which package bags are conveyed successively. The arms convey the hopper groups from the first area to the second area in a predetermined order, the n hoppers sequentially conveyed to the second area are located above the n package bags conveyed to a region under the second area; the hoppers are located above the package bags in the second area, and the hopper groups are stopped in the first area. The hopper groups discharge the objects, when the hopper groups are conveyed in the second area.

Link apparatus, weighing apparatus using a link apparatus, packaging apparatus using a link apparatus and weighing and packaging system using a link apparatus

A link apparatus for weighing objects from a weighing machine to bags conveyed at high speed, a weighing apparatus and a packing apparatus using the link apparatus, and a weighing and packaging system are disclosed. A link apparatus comprises funnel-shaped chutes supplied with objects through entrances and respectively discharge the objects through exits. A rotary board conveys the chutes along a revolving path where the exits are arranged in one line in a direction along the revolving path. The revolving path includes a first area under which package bags are conveyed in the direction along the revolving path, the first area being a part of the revolving path; wherein the entrances are formed by elongated openings; and the rotary board conveys the chutes such that the exits are located above the package bags in the first area.

A combination weigher capable of performing a high-speed operation regardless of a characteristic of a weighed object comprises plural weighing units and a lower collecting chute and a lower collecting hopper which collect the objects which have been discharged from upper collecting hoppers of weighing units and discharge them, and a control unit. The control unit repetitively performs a process for determining a discharge combination from weighing hoppers in all weighing units, a process for causing weighing hoppers making up the discharge combination to discharge the objects, a process for causing all of the upper collecting hoppers to discharge the objects; and a process for causing the lower collecting hopper to discharge the objects.

Combination weigher having improved combination hopper access

A combination weigher capable of high-speed operation comprises plural weighing units each of which includes a weighing hopper group including plural weighing hoppers arranged along an inner side of an imaginary circle and fed with objects; and a collecting chute disposed below the weighing hopper group and configured to collect the objects discharged from the weighing hoppers and to discharge the objects from a discharge outlet at a bottom part thereof, wherein weighing hopper groups of the respective weighing units include plural weighing hoppers arranged on inner sides of different imaginary circles, the different imaginary circles partially overlap with each other, and the weighing hoppers are not disposed in circular-arc regions of the imaginary circles corresponding to the overlapping region of the different imaginary circles.

Combination weigher having reduced batch time and improved operational speed

A combination weigher includes a plurality of upper collecting chutes disposed below weighing hoppers, a plurality of upper collecting hoppers provided at discharge outlets of the upper collecting chutes, a lower collecting chute provided below the upper collecting hoppers, a lower collecting hopper provided at a discharge outlet of the lower collecting chute, and a control unit which repeatedly performs a combination process to determine one discharge combination of the weighing hoppers, a discharge process for discharging the objects from the weighing hoppers onto the upper collecting chutes, and a discharge process for discharging the objects simultaneously from the upper collecting hoppers, and a discharge process for discharging the objects from the lower collecting hopper.

Combination weigher including a plurality of combination hopper groups

A volumetric feeder made of a plurality of independent feeder elements. Each of the feeder elements is provided with a stationary portionand a movable volumetric measurethat moves back and forth in the stationary portion. Each movable volumetric measure is provided with a measure portionfor accommodating a predetermined volume of powdery or granular material. The movable volumetric measure in the feeder elements are capable of moving independently of one another between a charging position at which the measure portionscoincide with charging aperturesof the stationary portion, and a discharging position at which the measure portionscoincide with discharging aperturesof the stationary portion

Volumetric feeder for powdery- or granular-material and powdery- or granular-material combination weigher

A combination weigher includes weighing hoppers capable of discharging weighed objects selectively in a first direction or in a second direction, a first collecting chute and a collecting hopper, a second collecting chute and a collecting hopper, and a control unit configured to determine a first discharge combination and a second discharge combination in which combination weight values fall within an allowable range with respect to a target weight value, to cause weighing hoppers belonging to the first discharge combination to discharge the weighed objects in the first direction, to cause weighing hoppers belonging to the second discharge combination to discharge the objects to be weighed in the second direction, and to cause the collecting hopper and the collecting hopper to discharge the objects to be weighed.

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Nishinomiya, Japan

Shozo Kawanishi