WO2016117148A1 - Dispositif de mesure à combinaison - Google Patents

Dispositif de mesure à combinaison Download PDF

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Publication number
WO2016117148A1
WO2016117148A1 PCT/JP2015/071233 JP2015071233W WO2016117148A1 WO 2016117148 A1 WO2016117148 A1 WO 2016117148A1 JP 2015071233 W JP2015071233 W JP 2015071233W WO 2016117148 A1 WO2016117148 A1 WO 2016117148A1
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WO
WIPO (PCT)
Prior art keywords
dispersion table
drive mode
weighed
rotation
screw
Prior art date
Application number
PCT/JP2015/071233
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English (en)
Japanese (ja)
Inventor
弘樹 大歳
章成 竹口
Original Assignee
株式会社イシダ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社イシダ filed Critical 株式会社イシダ
Priority to JP2016570476A priority Critical patent/JP6389903B2/ja
Publication of WO2016117148A1 publication Critical patent/WO2016117148A1/fr
Priority to DKBA201700068U priority patent/DK201700068Y3/da

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/387—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value

Definitions

  • This disclosure relates to a combination weighing device that conveys an object to be weighed using screw conveyance.
  • Patent Document 1 discloses a combination weighing device.
  • This combination weighing device is provided with detection means for detecting an abnormality in the flow of an object to be weighed at the boundary between a dispersion means constituted by, for example, a conical rotary table and a conveyance means constituted by, for example, a screw feeder, and the detection means
  • the control means controls the dispersing means and the conveying means based on the abnormality detection of the flow of the object to be weighed.
  • the dispersing means is a conical rotary table
  • such a combination weighing device changes the rotational speed and the rotational direction of the rotary table so as to transfer an object to be weighed on the edge portion of the dispersing means to a neighboring transport means. Operates to carry on. By operating in this way, even a highly sticky object that can be dispersed only by hand can be automatically dispersed.
  • the object to be weighed may stay between adjacent screw feeders.
  • the longitudinal direction part of the object to be weighed may be caught and retained between adjacent screw feeders.
  • the object to be weighed is meat, there are situations where a plurality of objects to be weighed are not completely separated but are connected by elongated muscle fibers or the like. In such a case, for example, such a streak is caught between adjacent screw feeders, and as a result, an object to be weighed may stay.
  • the screw feeder when (1) the dispersion table rotates clockwise as viewed from the upper side in the substantially vertical direction, and (2) the screw feeder is viewed from the conveyance end side of the object to be weighed, the screw feeder Are screwed clockwise and the screw feeder itself is rotating counterclockwise.
  • the screw feeder serves as a resistance to the object to be weighed, the object to be weighed is conveyed in accordance with the conveying operation of the screw feeder. That is, with such a combination of rotational directions, it is easy to control the supply amount from the screw feeder.
  • the screw feeder operates in the same manner as described above, and the screw is rotated counterclockwise when viewed from the upper side in the vertical direction.
  • the feeder is less likely to become a resistance to the object to be weighed.
  • the object to be weighed is not conveyed in conjunction with the conveying operation of the screw feeder, and moves along the trough due to its own weight.
  • the object to be weighed between the screw feeders can be removed, but the supply amount from the screw feeder is difficult to control.
  • the present disclosure rotates in the same rotational direction from the state in which the dispersion table and the screw feeder rotate in the opposite rotational direction in order to prevent the object to be weighed from staying between adjacent screw feeders.
  • a combination weighing device that makes it possible to easily control the supply amount by controlling the rotational drive of the dispersion table so that the expected supply amount in each state is different even when the state is switched to .
  • a first feature of the combination weighing device is a dispersion table that disperses an object to be weighed supplied from the outside, a plurality of hoppers arranged around the dispersion table, and a rotation center of the dispersion table from the rotation center to the hopper.
  • a trough extending in a direction toward the head, a screw portion including a spiral member that is disposed in the trough and that transports an object to be weighed supplied to the trough by the dispersion table to the hopper by rotation driving, and the dispersion table and the screw portion
  • the screw unit is wound in the first rotation direction when viewed from the conveyance end side of the object to be weighed in the trough, and the control unit When the conveyance start end side is viewed from the conveyance end side of the object to be weighed in the second rotation direction opposite to the first rotation direction, the screw is located at the rotation center of the screw portion.
  • the second rotation drive mode for rotating the dispersion table in the second rotation direction is intermittently switched and executed, and the expected supply amount from the distribution table to the trough in the first rotation drive mode is the second rotation drive mode.
  • the main point is that it is larger than the expected supply from the distribution table into the trough.
  • the second feature of the combination weighing device is that a dispersion table that disperses an object to be weighed supplied from the outside by rotation driving, a plurality of hoppers arranged around the dispersion table, and a dispersion table A trough extending in a direction from the center of rotation toward the hopper, and a screw portion that is disposed in the trough and includes a spiral-shaped member that conveys an object to be weighed supplied into the trough by a dispersion table to the hopper by rotation driving; It is provided with a control unit for controlling the rotation drive in the dispersion table and the screw unit, and the control unit controls the rotation drive in the dispersion table and the screw unit based on the transport amount of the objects to be weighed to each of the plurality of hoppers. And
  • the dispersion table and the screw feeder are rotated in the opposite rotation direction, so that the same rotation direction is obtained. Even in the case of switching to the rotating state, by controlling the rotation driving of the dispersion table, the expected supply amount in each state can be made different, so that the supply amount control can be easily performed.
  • FIG. 2 is a schematic plan view of the combination weighing device 1 according to FIG. 1 as viewed from above. It is a schematic perspective view for demonstrating the structure of the screw unit 30 in this embodiment. It is a schematic diagram for demonstrating the structure of the screw unit 30 in this embodiment.
  • FIG. 3 is a schematic diagram for explaining the movement of an object to be weighed on a dispersion table 10.
  • FIG. 3 is a schematic diagram for explaining the movement of an object to be weighed on a dispersion table 10.
  • FIG. It is a figure for demonstrating the relationship between the rotational drive of the dispersion
  • FIG. 1 is a schematic perspective view of a combination weighing device 1 in the present embodiment.
  • a dispersion table 10 includes a dispersion table 10, a transport unit 20, a screw unit 30, a pool hopper 40, a weighing hopper 50, a booster hopper 60, a collective discharge chute 70, and a guide block 80.
  • the rotation direction of the dispersion table 10 is described in the following description, the rotation axis C (see FIG. 1) extending in the vertical direction is assumed to be the rotation direction when viewed from the upper side in the substantially vertical direction.
  • the rotation direction of the screw unit 30 it is set as the rotation direction when the conveyance start end side is seen from the conveyance termination side of the to-be-measured object in the screw unit 30. That is, the rotation direction of the screw unit 30 is set to a rotation direction based on the direction from the outer periphery of the combination weighing device 1 toward the rotation center of the dispersion table 10.
  • an object to be weighed is transported to the combination weighing device 1 by a cross feeder (not shown) arranged above the combination weighing device 1.
  • the objects to be weighed are soft and sticky foods such as raw chicken.
  • the object to be weighed is not limited to this, and any object may be used as long as it is difficult to carry by normal vibration conveyance.
  • the object to be weighed that has been conveyed by the cross feeder is supplied to the substantially central portion of the dispersion table 10.
  • the dispersion table 10 is driven to rotate about the rotation axis C.
  • distribution table 10 conveys the to-be-measured object supplied from upper direction toward a radial direction outer side, disperse
  • the objects to be weighed and conveyed by the dispersion table 10 are discharged from the outer peripheral edge of the dispersion table 10.
  • the dispersion table 10 is rotated clockwise (in this embodiment, the first ) (Hereinafter referred to as the first rotational drive mode) and counterclockwise (second rotational direction in the present embodiment) (hereinafter referred to as the second rotational drive mode). ) And are executed intermittently. Thereby, the force is applied in different directions, and as a result, the objects to be weighed move in different directions. By this action, it is possible to suppress a phenomenon in which an object to be weighed is retained between adjacent screw units 30.
  • the objects to be weighed released from the dispersion table 10 are supplied to a plurality of conveyance units 20 arranged in a ring shape below the dispersion table 10.
  • the some conveyance part 20 is extended radially from the rotation center O of the dispersion
  • the plurality of transport units 20 extend radially from the center of the combination weighing device 1.
  • a guide block 80 is disposed between the adjacent conveyance units 20. The action of the guide block 80 prevents the object to be weighed from dropping between the transporting units 20.
  • Each transport unit 20 transports the objects to be weighed supplied from the dispersal table 10 toward the pool hopper 40 that is arranged around the disperse table 10 so as to correspond to each transport unit 20.
  • each transport unit 20 the object to be weighed is transported in the trough 21 by the rotational drive of the screw unit 30 disposed in the trough 21.
  • Each transport unit 20 drops the transported object onto the pool hopper 40 by dropping it onto the pool hopper 40 disposed below the outer end of the transport unit 20 (below the outer end of the trough 21). Supply a sample.
  • the pool hopper 40 temporarily holds the objects to be weighed supplied from the transport unit 20. Thereafter, the held objects to be weighed are supplied to the corresponding weighing hoppers 50, which are arranged one below the respective pool hoppers 40. In each weighing hopper 50, the weight of the object to be weighed is measured by a weighing mechanism (not shown). The objects to be weighed discharged from the weighing hoppers 50 are accommodated in the corresponding booster hoppers 60 arranged one below the weighing hoppers 50 and temporarily held.
  • the controller (not shown) of the combination weighing device 1 matches the target weight in the allowable range of weight combinations based on the weight of the objects to be weighed in the weighing hopper 50 and the booster hopper 60, or Find the closest hopper combination by calculation.
  • the objects to be weighed in the hopper included in the combination obtained by the calculation by the controller are discharged to the collective discharge chute 70.
  • the objects to be weighed discharged to the collective discharge chute 70 are supplied to a downstream process (not shown).
  • FIG. 2 is a schematic perspective view of the dispersion table 10 and the transport unit 20 of the combination weighing device 1 according to FIG. In FIG. 2, the state where the guide block is removed is drawn.
  • FIG. 3 is a partial cross-sectional view of the dispersion table 10 of the combination weighing device according to FIG. 1 and the conveyance unit 20 of the combination weighing device 1 as viewed from the side.
  • the front side of the concave groove portion of the trough 21 of the transport unit 20 is not illustrated.
  • the holder of the screw unit 30 of the conveyance part 20 sectional drawing is drawn.
  • FIG. 4 is a schematic plan view of the combination weighing device 1 according to FIG. 1 as viewed from above.
  • a state in which the distribution table 10 has been removed is drawn. Only the position of the outer edge of the dispersion table 10 is drawn with a two-dot chain line.
  • the dispersion table 10 is a member that disperses an object to be weighed supplied from a cross feeder (not shown) disposed above the combination weighing device 1.
  • the dispersion table 10 supplies the dispersed objects to be weighed to the transport unit 20.
  • the dispersion table 10 is a member formed in a substantially circular shape in plan view.
  • the dispersion table 10 includes a conical part 11 disposed at the center and a peripheral part 12 disposed on the periphery of the conical part 11 (see FIG. 2).
  • the conical part 11 and the peripheral part 12 are both inclined so that the peripheral side of the dispersion table 10 is lowered (see FIG. 3).
  • the inclination of the cone part 11 is formed steeper than the inclination of the peripheral edge part 12 (see FIG. 3).
  • the dispersion table 10 is supported by a drive shaft (see FIG. 3) arranged below the dispersion table 10.
  • the drive shaft that supports the dispersion table 10 is connected to the dispersion table motor 101.
  • the dispersion table motor 101 is driven by the control unit 102, the dispersion table 10 is rotationally driven around the rotation axis C extending in the vertical direction.
  • the dispersion table 10 When an object to be weighed is supplied from a cross feeder (not shown) disposed above the combination weighing device 1 to the vicinity of the center of the dispersion table 10 that is rotationally driven by a dispersion table motor, the dispersion table 10 is controlled.
  • the rotational drive is controlled by the unit 102, and the supplied object to be weighed is conveyed outward in the radial direction while being dispersed in the circumferential direction by centrifugal force.
  • the objects to be weighed and transported by the dispersion table 10 are discharged from the outer peripheral edge of the dispersion table 10 and fall into the trough 21 (see FIG. 2) of any of the transport units 20.
  • the transport unit 20 is a member that transports an object to be weighed supplied from the dispersion table 10.
  • the combination weighing device 1 in the present embodiment has 14 transport units 20.
  • the quantity of the conveyance part 20 is an illustration, Comprising: It is not limited to this.
  • a configuration including 18 transport units 20 or a configuration including 24 transport units 20 may be employed.
  • the plurality of transport units 20 are arranged below the distribution table 10 and so as to surround the distribution table 10 (see FIG. 2).
  • the plurality of transport units 20 extend radially from the periphery of the dispersion table 10 toward the pool hopper 40 disposed around the dispersion table 10 in plan view (see FIG. 4).
  • the plurality of transport units 20 extend radially from the space below the dispersion table 10 (see FIG. 4) toward the pool hopper 40 disposed around the dispersion table 10.
  • One weighing hopper 50 corresponding to the pool hopper 40 is provided below each pool hopper 40 (see FIG. 1). That is, the transport unit 20 extends radially from the periphery of the dispersion table 10 toward the weighing hopper 50 disposed around the dispersion table 10.
  • the transport unit 20 transports the objects to be weighed dispersed by the dispersion table 10 toward the weighing hopper 50 (in the transport direction D shown in FIG. 3).
  • Each conveyance unit 20 mainly has a trough 21 and a screw unit 30 (see FIG. 2).
  • the screw unit 30 is disposed in the trough 21.
  • the trough 21 extends from the space below the distribution table 10 toward the pool hopper 40 corresponding to the trough 21 (see FIGS. 3 and 4). Each trough 21 extends in the radial direction with respect to the rotation center O of the dispersion table 10 in plan view (see FIG. 4). The troughs 21 included in each of the plurality of transport units 20 extend radially from the dispersion table 10 as a whole (see FIG. 4).
  • Each trough 21 is separated from the internal space of the frame 90 by the upstream side wall 91 (see FIG. 3).
  • the frame 90 is disposed below the distribution table 10 and supports the distribution table 10. Further, the frame 90 is provided with an opening 1001 into which the screw unit 30 is inserted, and accommodates at least a rotation driving unit 1002 (described later) that transmits driving force to the screw unit 30 in the internal space of the opening 1001 (FIG. 3). reference).
  • the rotation drive unit 1002 is connected to a motor provided in the apparatus main body, and rotates about a rotation axis D shown in FIG. 3 in conjunction with the drive of the motor.
  • Each trough 21 includes a concave groove portion 22 extending from the upstream side wall portion 91 and having a semicircularly curved inner surface 22a (see FIG. 2).
  • the recessed groove portion 22 is formed in a groove shape recessed downward by an inner surface 22a curved in a semicircular shape.
  • the concave groove 22 of each trough 21 extends from the upstream side wall 91 to the pool hopper 40 outward in the radial direction with respect to the rotation center O of the dispersion table 10.
  • the concave groove portion 22 is inclined so that its outer edge side is lower, in other words, the pool hopper 40 side is lower than the dispersion table 10 side (see FIG. 3).
  • the to-be-measured object discharged from the outer peripheral edge of the dispersion table 10 is supplied to the trough 21.
  • the object to be weighed supplied to the trough 21 is conveyed to the pool hopper 40 by the rotational drive of the screw unit 30 disposed in the trough 21. More specifically, the screw unit 30 conveys the object to be weighed toward the pool hopper 40 by rotating the screw member 31 disposed on the trough 21.
  • One screw unit 30 is arranged in each trough 21 (see FIG. 4).
  • the object to be weighed that has dropped onto the trough 21 is conveyed through the trough 21 by the rotational drive of the screw unit 30.
  • the configuration of the screw unit 30 will be described later.
  • One pool hopper 40 is provided below the outer edge side of each trough 21.
  • the pool hopper 40 accommodates and temporarily holds an object to be weighed that has been transported by the transport unit 20.
  • the pool hopper 40 supplies the temporarily held object to the weighing hopper 50 provided below the pool hopper 40 by opening an opening / closing gate (not shown) provided at the lower part of the pool hopper 40.
  • the weighing hopper 50 is an example of a weighing means.
  • the weighing hopper 50 is disposed around the dispersion table 10. Specifically, one weighing hopper 50 is provided below each pool hopper 40. In other words, one weighing hopper 50 is provided below the outer edge side of the trough 21 of each transport unit 20.
  • the weighing hopper 50 accommodates the objects to be weighed supplied from the pool hopper 40 and temporarily holds them.
  • the weighing hopper 50 supplies the temporarily held object to the booster hopper 60 provided below the weighing hopper 50 by opening an opening / closing gate (not shown) provided at the lower portion of the weighing hopper 50. To do.
  • Each weighing hopper 50 has a weighing device (not shown) that measures the weight of an object to be weighed in the weighing hopper 50.
  • the weighing device is, for example, a load cell.
  • the weighing result of the weighing device is transmitted to a controller (not shown) of the combination weighing device 1.
  • One booster hopper 60 is provided below each weighing hopper 50.
  • the booster hopper 60 is configured to receive and temporarily hold an object to be weighed supplied from the weighing hopper 50.
  • the booster hopper 60 supplies the temporarily held objects to the collective discharge chute 70 provided below the booster hopper 60 by opening an opening / closing gate (not shown) provided at the lower part of the booster hopper 60. To do.
  • the booster hopper 60 receives the supply of the object to be weighed from the weighing hopper 50, the object to be weighed can be moved by the booster hopper 60 by opening an open / close gate (not shown) provided at the lower part of the booster hopper 60. It is possible to supply to the collective discharge chute 70 without holding it once.
  • FIG. 5 is a schematic perspective view for explaining the structure of the screw unit 30 in the present embodiment.
  • FIG. 6 is a schematic diagram for explaining the structure of the screw unit 30 in the present embodiment.
  • FIG. 6 is a diagram in which the outer diameter member 32 is cut along a predetermined plane, and is drawn so that the relationship between the groove cam provided in the inner diameter member 33 and the outer diameter member 32 disposed around the groove cam can be understood. Has been.
  • FIG. 7 is a view showing a frame 90 to which the screw unit 30 is attached, an opening 1001 provided in the frame 90, a rotation drive unit 1002, and a projection 1003.
  • the screw unit 30 is mounted in an opening 1001 formed in the frame 90 by the user.
  • the opening 1001 has a hole-like structure formed in the frame 90. Inside the opening 1001, a rotation driving unit 1002 connected to a motor is disposed.
  • the rotation drive unit 1002 is connected to a motor (not shown), and rotates around the rotation axis D shown in FIG. 3 by driving the motor.
  • the rotation axis D is a rotation axis that is set substantially the same as the insertion direction in which the screw unit 30 is inserted into the opening 1001.
  • a protrusion 1003 is formed at the end of the rotation drive unit 1002 (see FIG. 7).
  • the protrusion 1003 rotates around the rotation axis D in conjunction with the rotation of the rotation driving unit 1002.
  • the protrusion 1003 fits with the groove cam formed on the inner diameter member 33 and can move while sliding on the groove cam.
  • the screw unit 30 (screw portion) mainly includes a screw member 31, an outer diameter member 32, and an inner diameter member 33.
  • the screw member 31 includes at least a linear member 31a formed in a spiral shape as shown in FIG. However, the linear member 31b may be further included. In the present embodiment, the screw member 31 is described as including a linear member 31a and a linear member 31b as spiral members as shown in FIG.
  • the linear member 31a and the linear member 31b are members wound clockwise with respect to the rotation center O of the screw member 31 (in the present embodiment, the first rotational direction).
  • the linear member 31a and the linear member 31b are left-handed screw members.
  • the linear member 31b is a member extending in the same direction as the linear member 31a, and does not physically intersect the linear member 31a.
  • the cross-sections of the linear members 31a and 31b may be a perfect circle. Moreover, you may comprise by polygonal cross-sections, such as square shape. In the case of a polygonal shape, so-called corners are formed on the linear member, so that the ability to carry the object to be measured is improved.
  • the screw member 31 is connected to the inner diameter member 33, and the screw member 31 also rotates in conjunction with the rotation of the inner diameter member 33. That is, when the rotation driving unit 1002 illustrated in FIG. 6 rotates, the inner diameter member 33 rotates in the same direction as the rotation of the rotation driving unit 1002. When the inner diameter member 33 rotates, the screw member 31 connected to the inner diameter member 33 rotates. The object to be weighed is transported in the trough and carried to the pool hopper 40 as the screw member 31 rotates.
  • the screw member 31 when the rotation drive unit 1002 rotates counterclockwise, the screw member 31 also rotates counterclockwise.
  • the linear member 31a and the linear member 31b are clockwise, in other words, left-handed members. Therefore, when the screw member 31 rotates counterclockwise, the object to be weighed is conveyed from the conveyance start end shown in FIG. 5 toward the conveyance end.
  • the outer diameter member 32 is a cylindrical member joined to the screw member 31. Furthermore, since the inner diameter member 33 is disposed inside the outer diameter member 32, the outer diameter member 32 has a donut shape in cross section. Further, the outer diameter member 32 is arranged around the inner diameter member 33 via a bearing or the like, and is configured to have little influence on the rotation operation of the inner diameter member 33. That is, the outer diameter member 32 is configured not to rotate by receiving the rotational force even when the inner diameter member 33 rotates.
  • the inner diameter member 33 is a cylindrical member connected to the screw member 31. And since the rotation drive part 1002 and the protrusion part 1003 are inserted in the inside of the internal diameter member 33, the cross section becomes donut shape.
  • the inner diameter member 33 is disposed in a space formed inside the outer diameter member 32. Further, the inner diameter member 33 is fitted with the protruding portion 1003 and has a groove cam on which the protruding portion 1003 slides from the fitted state.
  • This groove cam is a groove cam in which a groove is formed in a spiral shape. Specifically, the groove cam has a groove formed in a spiral shape from a starting point of a portion of the inner diameter member 33 that fits with the protrusion 1003. As the protrusion 1003 moves while sliding with respect to the groove cam, the inner diameter member 33 is inserted into the main body.
  • first groove cam portion a portion that first fits with the protruding portion 1003 is referred to as a first groove cam portion.
  • second groove cam portion a portion in which the protrusion 1003 moves while sliding from the state in which the protrusion 1003 is fitted to the first groove cam portion.
  • the first groove cam portion and the second groove cam portion are formed physically continuously. That is, the protrusion 1003 can slide and move on the second groove cam portion as it is after sliding and moving on the first groove cam portion. However, in order to move the protrusion 1003 from the first groove cam portion to the second groove cam portion or from the second groove cam portion to the first groove cam portion, the user needs to change the direction of the force applied to the screw unit 30. There is.
  • the switching portion between the first groove cam portion and the second groove cam portion is preferably discontinuous in the direction in which the protrusion 1003 slides and moves.
  • the first groove cam portion has a groove cam formed in the same direction as the rotation axis D
  • the second groove cam portion is a groove formed spirally with respect to the outer periphery of the inner diameter member 33. It becomes a cam.
  • the operation when fitting the protrusion 1003 into the first groove cam portion and the operation when moving the protrusion 1003 while sliding on the first groove cam portion and the second groove cam portion. Can be different.
  • the user may apply a force in the same direction as the rotation axis D. Therefore, even if it is difficult for the user to see the attachment portion between the protrusion 1003 and the first groove cam portion, the user can intuitively fit the screw unit 30 into the protrusion 1003.
  • first groove cam portion and the second groove cam portion are not limited to those described above, and any configuration may be used as long as the force applied to the screw unit 30 by the user is changed. It doesn't matter.
  • FIGS. 8 and 9 are schematic diagrams for explaining the movement of the object to be weighed on the dispersion table 10.
  • the relationship between the distribution table 10 and the guide block 80 is described as a diagram, and other components other than the distribution table 10 and the guide block 80 are omitted.
  • at least the screw unit 30 is disposed between the guide blocks 80, and the object to be weighed supplied from the dispersion table 10 is conveyed.
  • the side surface on the right side of the guide block 80 is the first side surface when viewed from the conveyance end of the object to be weighed in the screw unit 30 toward the conveyance start end.
  • the side surface on the left side of the guide block 80 is defined as the second side surface.
  • the control unit 102 controls the rotational drive of the dispersion table 10 in order to prevent the object to be weighed from staying between the adjacent screw units 30. Specifically, the control unit 102 intermittently switches between a first rotational drive mode in which the dispersion table 10 is rotationally driven clockwise and a second rotational drive mode in which the dispersion table 10 is rotationally driven counterclockwise.
  • the controller 102 determines that the expected supply amount of the object to be weighed supplied from the dispersion table 10 in the first rotation drive mode into the trough 21 (that is, the screw unit 30, the same applies hereinafter) in the second rotation drive mode.
  • the respective rotational drive modes in the dispersion table 10 are controlled so as to result in a larger amount than the expected supply amount of the objects to be weighed supplied from the dispersion table 10 to the screw unit 30.
  • the expected supply amount is, for example, a value indicating the supply amount until the predetermined rotation drive mode is switched to a different rotation drive mode.
  • the supply amount is the predicted supply amount that the dispersion table 10 supplies to the screw unit 30 before switching from the first rotation drive mode to the second rotation drive mode.
  • the predicted supply amount is not limited to the above-described configuration, and may be the predicted amount supplied from the dispersion table 10 to the screw unit 30 per unit time. In short, any predicted supply amount in the present embodiment may be used as long as it is a predicted supply amount from the dispersion table 10 to the screw unit 30 based on a predetermined standard.
  • the expected supply amount may be a value directly set by the user for the control unit 102.
  • the control unit 102 controls the rotational driving operation of the dispersion table 10 with respect to the set expected supply amount.
  • the expected supply amount is not a value set for the control unit 102, but the driving time, angular velocity, angular acceleration, etc. in the distribution table 10 used when the control unit 102 rotates the distribution table 10. It may be a supply amount that a user empirically recognizes from a parameter related to rotation driving. For example, when adjusting only the driving time among the parameters related to the rotational driving of the dispersion table 10, the user generally recognizes that the longer the driving time, the larger the expected supply amount. In short, as a result, the expected supply amount in the first rotation drive mode only needs to be larger than the expected supply amount in the second rotation drive mode. That is, the control unit 102 may be operated so as to achieve the above result based on the expected supply amount set by the user or the device itself, and the above result is obtained by setting the control parameter related to the rotational drive by the user. You may make it operate so that.
  • control unit 102 or the user increases the drive time of the dispersion table 10 in the first rotation drive mode to increase the expected supply amount in the first rotation drive mode more than the expected supply amount in the second rotation drive mode. You may set longer than the drive time of the dispersion
  • control unit 102 or the user increases the angular acceleration of the dispersion table 10 in the first rotation drive mode to increase the expected supply amount in the first rotation drive mode more than the expected supply amount in the second rotation drive mode. You may set faster than the angular acceleration of the dispersion
  • control unit 102 or the user sets the angular velocity of the dispersion table 10 in the first rotational drive mode to the second rotational speed in order to make the expected supply amount in the first rotational drive mode larger than the expected supply amount in the second rotational drive mode. You may set faster than the angular velocity of the dispersion
  • the control unit 102 or the user may be configured to control by changing two or more control parameters related to the rotational drive of the dispersion table 10.
  • FIG. 10 is a diagram for explaining the relationship between the rotational drive of the dispersion table 10 and the expected supply amount.
  • the vertical axis indicates the angular velocity in the dispersion table 10.
  • the horizontal axis indicates time. Therefore, the slope of the graph shown in FIG. 10 indicates the angular acceleration of the dispersion table 10.
  • the clockwise movement of the distribution table 10 is displayed as positive, and conversely, the counterclockwise movement of the distribution table 10 is displayed as negative. That is, in the graph shown in FIG. 10, a region where the vertical axis is positive indicates a state in which the operation is performed in the first rotation drive mode. On the other hand, in the graph shown in FIG. 10, the region where the vertical axis is negative indicates a state in which the operation is performed in the second rotation drive mode.
  • the expected supply amount from the dispersion table 10 to the screw unit 30 can be considered as the area of the shaded portion shown in FIG.
  • the expected supply amount until the first rotation drive mode is switched to the second rotation drive mode can be expressed as the area of the shaded portion from time 0 to t1 shown in FIG. Further, the expected supply amount from when the second rotational drive mode is switched to the first rotational drive mode can be expressed as the area of the shaded portion from time t1 to time t2 shown in FIG.
  • control unit 102 or the user compares the two areas so that the area in the first rotation drive mode is smaller than the area in the second rotation drive mode. Change at least one of them.
  • a configuration may be adopted in which a third rotation drive mode is used in which the angular velocity of the dispersion table 10 is zero.
  • distribution table 10 can be reduced, the aged deterioration in an apparatus can be suppressed.
  • the combination weighing device 1 in this embodiment includes a dispersion table 10 that disperses an object to be weighed supplied from the outside, a plurality of pool hoppers 40 arranged around the dispersion table 10, and a rotation center O of the dispersion table 10. And the trough 21 extending in the direction of the pool hopper 40, and the object to be weighed supplied to the inside of the trough 21 (that is, the screw unit 30) by the dispersion table 10 to the pool hopper 40 by rotation driving.
  • a screw unit 30 including a spiral-shaped member to be conveyed, and a control unit 102 that controls rotational driving in the dispersion table 10 and the screw unit 30 are provided.
  • the screw unit 30 is wound in the first rotation direction (for example, clockwise) when the conveyance start end side is viewed from the conveyance end side of the object to be weighed.
  • the control unit 102 looks at the conveyance start end side from the conveyance end side of the object to be weighed, the control unit 102 moves the screw unit 30 in the second rotation direction (for example, counterclockwise) opposite to the first rotation direction.
  • the drive mode for rotating the screw unit 30 to the rotation center O is executed and the lower side of the dispersion table 10 is viewed from the upper side in the substantially vertical direction, the (1) first A first rotation drive mode for rotating the dispersion table 10 in the rotation direction and (2) a second rotation drive mode for rotating the dispersion table in the second rotation direction are intermittently switched and executed.
  • the expected supply amount from the dispersion table 10 to the screw unit 30 in the first rotation drive mode is larger than the expected supply amount from the dispersion table 10 to the screw unit 30 in the second rotation drive mode.
  • the first rotation direction is described as clockwise.
  • the second rotation direction is described as being counterclockwise, which is the rotation direction opposite to the first rotation direction.
  • the objects to be weighed on the dispersion table 10 are supplied as shown in FIG. 8A to FIG. 8B. That is, the objects to be weighed on the dispersion table 10 are supplied from the dispersion table 10 in the first side surface direction of the guide block 80.
  • the screw unit 30 rotates counterclockwise as described above, the linear member 31a and the linear member 31b in the screw unit 30 provide resistance to the object to be weighed. This is because the screw member 31a and the screw member 31b in the screw unit 30 are formed as left-handed screws as described above, and the screw unit 30 itself is driven to rotate counterclockwise. As a result, the object to be weighed is transported in the trough 21 in conjunction with the rotational drive of the screw unit 30.
  • the objects to be weighed on the dispersion table 10 are supplied as shown in FIGS. 9A to 9B. That is, the objects to be weighed on the dispersion table 10 are supplied from the dispersion table 10 in the second side surface direction of the guide block 80.
  • the screw unit 30 rotates counterclockwise as in the case where the dispersion table 10 rotates clockwise, the linear member 31a and the linear member 31b in the screw unit 30 are attached to the object to be measured. Does not become resistance.
  • the linear member 31a and the linear member 31b in the screw unit 30 are formed as left-handed screws as described above, and the screw unit 30 itself is driven to rotate counterclockwise.
  • at least a part of the objects to be weighed is not interlocked with the rotational drive of the screw unit 30, slides in the trough 21 by its own weight, and is supplied to the pool hopper 40.
  • the amount of supply from the screw unit 30 to the pool hopper 40 can be controlled only by controlling the rotation drive of the screw unit 30. It cannot be controlled favorably. That is, when the linear member 31a and the linear member 31b in the screw unit 30 are left-handed screw mechanisms, the supply amount from the screw unit 30 to the pool hopper 40 can be reduced if the dispersion table 10 and the screw unit 30 have different rotational directions. Easy to control. On the contrary, if the dispersion table 10 and the screw unit 30 are in the same rotational direction, it becomes difficult to control the supply amount from the screw unit 30 to the pool hopper 40.
  • the screw unit by controlling the expected supply amount from the dispersion table 10 to the screw unit 30 in accordance with the rotation direction of the dispersion table 10, the screw unit It is possible to easily control the supply amount from 30 to the pool hopper 40.
  • the operation time in the first rotation drive mode is set longer than the operation time in the second rotation drive mode.
  • the area of the shaded portion shown in FIG. 10 (a) or FIG. 10 (b) can be increased.
  • the control parameters other than the operation time are the same among the control parameters in the first rotation drive mode and the second rotation drive mode, the expected supply amount in the first rotation drive mode is changed to the value in the second rotation drive mode. More than expected supply.
  • the screw unit 30 can be transferred to the pool hopper 40 while suppressing the stay of the object to be weighed by controlling or changing the operation time in the first rotation drive mode and the second rotation drive mode without performing complicated control. Can be easily controlled.
  • the angular velocity of the dispersion table in the first rotational drive mode is set faster than the angular velocity in the second rotational drive mode.
  • the area of the shaded portion shown in FIG. 10 (a) or FIG. 10 (b) can be increased. Accordingly, for example, if the control parameters other than the angular velocity are the same among the control parameters in the first rotation drive mode and the second rotation drive mode, the expected supply amount in the first rotation drive mode is set to the expected supply amount in the second rotation drive mode. More than the supply amount.
  • the angular acceleration of the dispersion table in the first rotational drive mode is set faster than the angular acceleration in the second rotational drive mode.
  • the area of the shaded portion shown in FIG. 10 (a) or FIG. 10 (b) can be increased.
  • the expected supply amount in the first rotational drive mode is More than expected supply.
  • the screw unit 30 can be transferred to the pool hopper 40 while suppressing the stay of the object to be weighed only by controlling or changing the angular acceleration in the first rotation drive mode and the second rotation drive mode without performing complicated control. Can be easily controlled.
  • control unit 102 has a third rotation drive mode in which the rotation of the dispersion table 10 is stopped, and executes the third rotation drive mode when switching between the first rotation drive mode and the second rotation drive mode.
  • the operation in which the screw unit 30 is driven to rotate counterclockwise has been described.
  • the control unit 102 expects that the amount of objects to be weighed supplied from the screw unit 30 to the pool hopper 40 will increase. It is also conceivable to stop or reversely rotate the rotation of the unit 30.
  • the rotational driving of the dispersion table 10 is intermittently switched between the first rotational driving mode and the second rotational driving mode.
  • the screw unit 30 performs the operation. More detailed control is possible because the expected supply can be adjusted. Thereby, it is possible to easily control the supply amount from the screw unit 30 to the pool hopper 40 in the apparatus.
  • the shape of the distribution table 10 is not limited to the shape in the above embodiment, and the distribution table 10 having a uniform gradient can also be used. That is, any shape of the distribution table 10 may be used.
  • guide block 80 is configured to be removable, a configuration in which it is integrally formed with the trough 21 is also conceivable.
  • the inner surface 22a of the concave groove portion may have a configuration having no inclination.
  • the combination weighing device 1 having the booster hopper 60 has been described.
  • an apparatus that does not have the booster hopper 60 is also conceivable.
  • the control unit 102 transfers the object to be weighed to each of a plurality of hoppers (for example, each of the pool hopper 40, each of the weighing hopper 50, each of the booster hopper 60, etc.). Based on the above, the rotational drive in the dispersion table 10 and the screw unit 30 is controlled.
  • the controller 102 controls the rotational drive in the dispersion table 10 or the screw unit 30 to perform the desired operation. It may be configured to satisfy the condition.
  • the present disclosure is applicable to a combination weighing device that uses a rotationally driven dispersion table and screw conveyance. Specifically, the present disclosure can be applied to an apparatus used for combination weighing such as a raw lever.
  • Dispersion table 20 Conveyance part (conveyance means) 21 trough 22 concave groove 22a inner surface of concave groove (surface facing trough screw member) 30 Screw unit 31 Screw member 31a Linear member 31b Linear member 40 Pool hopper 50 Weighing hopper (measuring means) 60 Booster Hopper 70 Collective Discharge Chute 80 Guide Block C Rotating Axis of Dispersing Table 10 D Transport Direction of Transport Unit (Transport Direction of Transport Unit)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

La présente invention concerne un dispositif de mesure à combinaison susceptible de commander facilement une quantité d'alimentation, même lorsqu'un fonctionnement qui met en rotation une table de dispersion et des parties à vis dans des directions de rotation opposées a été commuté à un fonctionnement qui met en rotation la table de dispersion et les parties à vis dans la même direction de rotation, afin de supprimer la retenue d'un objet mesuré entre des parties à vis adjacentes. Le dispositif de mesure à combinaison comprend une table de dispersion, des parties à vis qui sont entraînées de façon rotative dans une auge, et une unité de commande qui commande l'entraînement rotatif dans les parties à vis et la table de dispersion. Les parties à vis comprennent un élément en spirale enroulé dans une première direction de rotation, et l'unité de commande réalise une commutation entre un premier mode d'entraînement rotatif et un second mode d'entraînement rotatif, le premier mode d'entraînement rotatif faisant met en rotation les parties à vis autour d'un centre de rotation des parties à vis dans une seconde direction de rotation opposée à la première direction de rotation et met en rotation la table de dispersion dans la première direction de rotation, et le second mode d'entraînement rotatif met en rotation la table de dispersion dans la seconde direction de rotation. La quantité d'alimentation escomptée dans le premier mode d'entraînement rotatif est plus élevée par rapport à la quantité d'alimentation escomptée dans le second mode d'entraînement rotatif.
PCT/JP2015/071233 2015-01-23 2015-07-27 Dispositif de mesure à combinaison WO2016117148A1 (fr)

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JP2016570476A JP6389903B2 (ja) 2015-01-23 2015-07-27 組合せ計量装置
DKBA201700068U DK201700068Y3 (da) 2015-01-23 2017-06-29 Kombinationsvægt

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WO2018130645A1 (fr) * 2017-01-13 2018-07-19 Marel A/S Balance combinatoire
EP3385684A1 (fr) * 2017-04-04 2018-10-10 Ishida Co., Ltd. Appareil de pesée par combinaison
WO2019058114A1 (fr) * 2017-09-19 2019-03-28 Ishida Europe Limited Appareil de pesage et procédé de pesage de produits alimentaires
CN110254763A (zh) * 2019-06-11 2019-09-20 台州仁民中药有限公司 一种药品包装机
US10472181B1 (en) * 2015-12-24 2019-11-12 Ishida Co., Ltd. Dispersive supply device and combination weighing device
WO2020079217A1 (fr) * 2018-10-18 2020-04-23 Marel A/S Dispositif de montage pour fixer un alimentateur à vis sur une peseuse associative
EP4242603A1 (fr) * 2022-03-11 2023-09-13 ISHIDA CO., Ltd. Dispositif de pesage

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JP2011145245A (ja) * 2010-01-18 2011-07-28 Ishida Co Ltd 組合せ計量装置
JP2014509290A (ja) * 2011-02-04 2014-04-17 キャビンプラント・インターナショナル・アクティーゼルスカブ 製品を運搬し、そして選択的に排出するための装置
JP3195388U (ja) * 2014-10-31 2015-01-15 株式会社イシダ 組合せ計量装置

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JP2011145245A (ja) * 2010-01-18 2011-07-28 Ishida Co Ltd 組合せ計量装置
JP2014509290A (ja) * 2011-02-04 2014-04-17 キャビンプラント・インターナショナル・アクティーゼルスカブ 製品を運搬し、そして選択的に排出するための装置
JP3195388U (ja) * 2014-10-31 2015-01-15 株式会社イシダ 組合せ計量装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10472181B1 (en) * 2015-12-24 2019-11-12 Ishida Co., Ltd. Dispersive supply device and combination weighing device
US11391618B2 (en) 2017-01-13 2022-07-19 Marel A/S Screw feeder for a combination weigher
US10564028B2 (en) 2017-01-13 2020-02-18 Marel A/S Dispersion unit for a combination weigher
WO2018130645A1 (fr) * 2017-01-13 2018-07-19 Marel A/S Balance combinatoire
EP3385684A1 (fr) * 2017-04-04 2018-10-10 Ishida Co., Ltd. Appareil de pesée par combinaison
US10670449B2 (en) 2017-04-04 2020-06-02 Ishida Co., Ltd. Combination weighing apparatus that controls rotation speed of dispersion table
CN111566460A (zh) * 2017-09-19 2020-08-21 石田欧洲有限公司 称重装置及用于称重食物产品的方法
WO2019058114A1 (fr) * 2017-09-19 2019-03-28 Ishida Europe Limited Appareil de pesage et procédé de pesage de produits alimentaires
CN112888917A (zh) * 2018-10-18 2021-06-01 马瑞奥股份有限公司 用于将螺旋进给器安装到组合称重器的安装设备
WO2020079217A1 (fr) * 2018-10-18 2020-04-23 Marel A/S Dispositif de montage pour fixer un alimentateur à vis sur une peseuse associative
JP2022505299A (ja) * 2018-10-18 2022-01-14 マレル・アクティエセルスカブ スクリューフィーダを組合せ計量器に取り付けるための取付装置
CN112888917B (zh) * 2018-10-18 2022-12-30 马瑞奥股份有限公司 用于将螺旋进给器安装到组合称重器的安装设备
CN110254763A (zh) * 2019-06-11 2019-09-20 台州仁民中药有限公司 一种药品包装机
EP4242603A1 (fr) * 2022-03-11 2023-09-13 ISHIDA CO., Ltd. Dispositif de pesage

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JP6389903B2 (ja) 2018-09-12
JPWO2016117148A1 (ja) 2018-03-15
DK201700068U1 (da) 2017-12-08
DK201700068Y3 (da) 2018-03-23

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