Abstract: A hopper has a gate pivotable to open and close the lower opening of a hopper body, wherein opposing side parts more spaced apart than a width of the body are extending from the gate, and the opposing side parts of the gate are externally fitted pivotably to fulcrum shafts protruding from outer side surfaces of the hopper body. The hopper further includes regulating members interposed between the outer side surfaces of the body and the opposing side parts of the gate. The regulating members are configured to regulate movements of the gate in pivotal directions thereof and are detachably engaged with the fulcrum shafts circumferentially around the fulcrum shafts.

Abstract: This disclosure provides a combination scale including a dispersing feeder, linear feeders, a plurality of hoppers, and a collector. The dispersing feeder and linear feeders are respectively disposed in upper parts of a center base of the combination scale to disperse and deliver outwardly articles received therein. The hoppers are removably mountable to an outer periphery of the center base to hold and discharge the articles. The collector collects the articles discharged from the hoppers on a central side of the center base and discharges the collected articles. The collector constitutes a collecting and discharging channel for the articles to be collected and discharged. The combination scale further includes a shielding tool configured to block liquid that drops from the center base downward into the collecting and discharging channel.

Abstract: A digital filter for a digital weigher reduces a calculation time in an adapted filter while maintaining weighing accuracy, a digital weigher includes the filter for the weigher, and a wave filtering process method uses the digital filter for the digital weigher. A fixation section of a FIR filter removes an oscillating component in a predetermined frequency range, from a digital weighing signal. A determination device determines whether an amplitude of an oscillating component contained in a digital weighing signal derived by performing a wave filtering process falls within a predetermined damping range. A control device changes a frequency range of an oscillating component to be removed by an adaptive section of the filter based on a result of the determination. The adaptive section of the filter performs the wave filtering process with respect to the oscillating component in the frequency range changed by the control device.

Abstract: A digital filter for a digital weigher reduces a calculation time in an adapted filter while maintaining weighing accuracy, a digital weigher includes the filter for the weigher, and a wave filtering process method uses the digital filter for the digital weigher. A fixation section of a FIR filter removes an oscillating component in a predetermined frequency range, from a digital weighing signal. A determination device determines whether an amplitude of an oscillating component contained in a digital weighing signal derived by performing a wave filtering process falls within a predetermined damping range. A control device changes a frequency range of an oscillating component to be removed by an adaptive section of the filter based on a result of the determination. The adaptive section of the filter performs the wave filtering process with respect to the oscillating component in the frequency range changed by the control device.

Abstract: A combination balance includes: a dispersion table that radially disperses articles loaded from above; and a vibration unit that vibrates the dispersion table up and down, wherein the dispersion table has a table main body and a wall portion, the table main body has a discharge region from which the articles are discharged and a non-discharge region from which the articles are not discharged, and the vibration unit has a plurality of vibration portions horizontally facing each other.

Abstract: This invention relates to a combination scale including an ejector to be supplied with compressed air to ventilate a central cabinet of the combination scale, wherein an interior of the central cabinet and a suction port of the ejector are connected to and communicating with each other.

Abstract: 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.

Abstract: 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.

Abstract: A digital filter for a digital weigher reduces a calculation time in an adapted filter while maintaining weighing accuracy, a digital weigher includes the filter for the weigher, and a wave filtering process method uses the digital filter for the digital weigher. A fixation section of a FIR filter removes an oscillating component in a predetermined frequency range, from a digital weighing signal. A determination device determines whether an amplitude of an oscillating component contained in a digital weighing signal derived by performing a wave filtering process falls within a predetermined damping range. A control device changes a frequency range of an oscillating component to be removed by an adaptive section of the filter based on a result of the determination. The adaptive section of the filter performs the wave filtering process with respect to the oscillating component in the frequency range changed by the control device.

Abstract: A hopper gate opening/closing mechanism for use in a combination weigher (100) includes an actuator (31) for generating a driving force for opening and closing the hopper gate; and a cam mechanism (40A, 21) for opening and closing the hopper gate (14A) based on the driving force applied by the actuator (31); wherein the cam mechanism (40A, 21) inhibits the hopper gate (14A) from being opened in a position at which the hopper gate (14A) is closed.

Abstract: A mechanism for opening and closing a hopper gate of the present invention, which is used in a combination weigher which performs combination calculation based on weights of objects, to find a combination in which a total of the weights of the objects falls within an allowable range with respect to a target weight, comprises an actuator (31) for generating a driving force for opening and closing the hopper gate (14A); a transmission mechanism for transmitting the driving force to the hopper gate (14A); a detecting device (60) capable of detecting an original point of a rotary shaft of the transmission mechanism, the original point corresponding to a position in which the hopper gate (14A) is closed; and a controller (18) capable of receiving an output signal of the detecting device (60).

Abstract: A combination weigher comprises hoppers divided into a first group and a second group; an inner funnel which collects objects discharged inward from the hoppers and discharges the objects through an opening; a first outer funnel which is placed along a first side of the inner funnel, and collects objects discharged outward from the hoppers in the first group; a second outer funnel which is placed along a second side of the inner funnel, and collects objects discharged outward from the hoppers in the second group; and a partition plate which separates an inner region of the inner funnel into a first region corresponding to the hoppers in the first group and a second region corresponding to the hoppers in the second group, and separates the opening into a discharge outlet corresponding to the first side and a discharge outlet corresponding to the second side.

Abstract: A lower side coupling of a Hirth coupling is coaxially coupled and fixed to a spindle, an upper side coupling of the Hirth coupling is coaxially coupled and fixed to a lower rim, the upper side coupling of the lower rim is meshed with the lower side coupling of the spindle, and upward separation of the lower rim from the spindle is prevented by chuck mechanisms.

Abstract: A combination weigher according to an embodiment of the present invention comprises a plurality of weighing conveyors which are manually fed with objects and conveys the objects fed manually; a plurality of weight sensors to correspond to the weighing conveyors to measure weights of the objects; 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, and activates the weighing conveyors selected to make up the discharge combination to convey the objects on the weighing conveyors in a first direction and discharge the objects from the weighing conveyors; and a collecting conveyor which is fed with the objects discharged from the one ends of the weighing conveyors, conveys the objects in a direction, and discharges the objects.

Abstract: A hopper in a combination weigher comprises a tubular hopper body having an upper opening and a lower opening and being fed with the objects forming the combination, through the upper opening, and a discharge gate which opens and closes the lower opening of the hopper body; wherein the hopper body includes a tubular body having four or more side walls connected together in an annular shape, the tubular body having a horizontal cross section having convex regions; and wherein the hopper body has a shape in which at a boundary portion between adjacent side walls of all pairs, an angle which is formed between a first virtual plane contacting one of the adjacent side walls and a second virtual plane contacting the other side wall, is equal to or greater than 90 degrees.

Abstract: An object collecting and discharging device, comprises an inner collecting chute; an outer collecting chute, a first discharge path having a first upper opening and a first lower opening; a second discharge path having a second upper opening, a third upper opening and a second lower opening; a third discharge path having a fourth upper opening and a third lower opening; a fourth discharge path having a fifth upper opening and a fourth lower opening; a fifth discharge path having a sixth upper opening, a seventh upper opening and a fifth lower opening; and a sixth discharge path having an eighth upper opening and a sixth lower opening.

Abstract: A combination weigher includes a collecting conveyor, a plurality of weighing conveyors, a control section which finds one combination of the weighing conveyors in which a total weight of the objects falls within a target weight range, and a manipulation setting display device which pre-inputs a desired value of a conveying length of the objects, and the control section finds start timings of conveying operation of the weighing conveyors selected to make up the discharge combination such that the conveying length of the objects becomes the desired value pre-input by the input unit and the objects discharged from the weighing conveyors selected to make up the discharge combination are at different positions on the collecting conveyor, and causes the weighing conveyors to start the conveying operation at the found timings.

Abstract: A collecting chute of a combination weigher has three discharge paths and can discharge objects so as to not get stuck in a discharge path. The collecting chute includes an inner funnel which discharges in an inward direction, a right outer funnel which discharges in an outward direction from the hoppers in a right group, and a left outer funnel which discharges in an outward direction from the hoppers in a left group, and a right chute member in which an edge of the right outer funnel is coupled to an outer surface of a right funnel section constituting the inner funnel and a left chute member in which an edge of the left outer funnel is coupled to an outer surface of a left section constituting the inner funnel are removably mounted to a frame.

Abstract: A combination weigher (100) comprises actuator units (19) for actuating weighing hoppers (14), and a body (17) having a side wall (17C) attached with the actuator units (19), and a casing member used to accommodate feeders (12) is formed by the side wall (17C).

Abstract: A weighing unit includes a mounting fastener member including a vertical portion; a load cell disposed at the one side of the vertical portion and including an elastic body of a rectangular frame shape including a fastened portion fastened to a vertical surface and a movable portion opposite to the fastened portion. A plurality of strain gauges are bonded to the elastic body, a weighing hopper disposed at an opposite side of the load cell with respect to the vertical portion, and has a discharge gate, a coupling member is fastened at one end to the movable portion, and a hopper retaining section including receivers and protrusions, for retaining the weighing hopper, extends from the one end portion to the other end portion in a downward direction to a location below the elastic body; and a gate opening/closing mechanism attached to the coupling member.