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WO2018139221A1 - Combination weighing device, combination weighing system, and area setting device - Google Patents

Combination weighing device, combination weighing system, and area setting device Download PDF

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Publication number
WO2018139221A1
WO2018139221A1 PCT/JP2018/000674 JP2018000674W WO2018139221A1 WO 2018139221 A1 WO2018139221 A1 WO 2018139221A1 JP 2018000674 W JP2018000674 W JP 2018000674W WO 2018139221 A1 WO2018139221 A1 WO 2018139221A1
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WO
WIPO (PCT)
Prior art keywords
article
staying
unit
region
hopper
Prior art date
Application number
PCT/JP2018/000674
Other languages
French (fr)
Japanese (ja)
Inventor
宮本　秀史
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
Publication of WO2018139221A1 publication Critical patent/WO2018139221A1/en

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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

  • One aspect of the present invention relates to a combination weighing device, a combination weighing system, and an area setting device.
  • the combination weighing device described in Patent Document 1 receives a staying part having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article. And a weighing unit that outputs a weighing value corresponding to the mass of the article stored in the hopper.
  • a combination of measurement values is selected from a plurality of measurement values weighed by the weighing unit and respectively associated with a plurality of hoppers so that the total value becomes a target measurement value.
  • a combination weighing process for discharging the article to the corresponding hopper is executed.
  • the combination weighing device As described above, a part of the articles staying in the staying area is manually put into the hopper.
  • the amount of articles input to the hopper depends on the judgment of the operator and varies depending on the proficiency level of the operator. Therefore, for example, an amount of articles that greatly exceeds the supply amount that should be supplied may be put into the hopper.
  • the measurement accuracy in combination weighing is reduced.
  • the operating rate is reduced due to occurrence of overscale or the like.
  • the overscale or the like means, for example, a case where a combination of a plurality of measurement values respectively associated with a plurality of hoppers is not included in a predetermined range based on the target measurement value. In another case, the measured value of one hopper exceeds the predetermined range with the target measured value as a reference.
  • An object of one aspect of the present invention is to provide a combination weighing device, a combination weighing system, and an area setting device that can improve the measurement accuracy and the operation rate in combination weighing.
  • the combination weighing device receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article.
  • a total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers.
  • a combination of weighing values is selected so as to be a weighing value, and a control unit that discharges articles to a hopper corresponding to the combination, a detection unit that detects a staying state of articles staying in the staying area, and a detection unit An area setting unit that sets a reference area corresponding to the supply amount of articles to be supplied to at least one hopper to articles in the stay area based on the stay state.
  • a reference area corresponding to the supply amount of articles to be supplied to at least one hopper is set in the articles in the stay area based on the stay state of the articles staying in the stay area.
  • the operator is made to recognize the reference area, and within the reference area.
  • the supply amount may be set based on a target measurement value. In this configuration, it is possible to put an amount of articles corresponding to the target measurement value related to the combination weighing into the hopper.
  • the supply amount may be set based on a measurement value associated with the hopper. In this configuration, it is possible to put an amount of articles corresponding to the current storage amount of the hopper into the hopper.
  • a projection unit that projects the reference region set by the region setting unit onto the article in the staying region may be further provided. In this configuration, the operator can easily recognize the reference area.
  • the information processing apparatus may further include a display unit that displays information related to the reference region set by the region setting unit. In this configuration, the operator can easily recognize the reference area.
  • the staying unit may have a placement surface on which an article is placed, and the region setting unit may set the reference region to the article on the placement surface. In this configuration, it is possible to easily detect the staying state of the article and to easily discharge the article from the staying portion.
  • the apparatus may further include a discharge unit that discharges the article in the reference area set by the area setting unit from the staying part so as to be supplied to the hopper to which the article is to be supplied.
  • the discharge unit may transfer the article in the reference area set by the area setting unit and directly discharge it to the supply target of the article. With this configuration, it is possible to speed up the supply of articles to the hopper.
  • an article staying in the staying area may be manually supplied to the hopper.
  • the combination weighing system receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article.
  • a total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers.
  • a combination weighing device including a control unit that selects a combination of measurement values so as to obtain a measurement value, and discharges the article to a hopper corresponding to the combination, and detection for detecting a staying state of the article staying in the staying area
  • a region setting unit that sets a reference region corresponding to the supply amount of the article to be supplied to at least one hopper based on the staying state detected by the detection unit, to the article in the staying region, Provided.
  • a reference area corresponding to the supply amount of articles to be supplied to at least one hopper is set in the articles in the stay area based on the stay state of the articles staying in the stay area.
  • the operator is made to recognize the reference area, and within the reference area.
  • An area setting device receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article.
  • a total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers.
  • An area setting device that is used in combination with a combination weighing device that includes a control unit that selects a combination of weighing values so as to obtain a weighing value, and discharges the article to a hopper corresponding to the combination, and the article staying in the staying region
  • a detection unit for detecting the staying state of the product and a reference region corresponding to the supply amount of the article to be supplied to at least one hopper based on the staying state detected by the detection unit.
  • a region setting unit that sets a.
  • this area setting device based on the staying state of the articles staying in the staying area, a reference area corresponding to the supply amount of the articles to be supplied to at least one hopper is set as the article in the staying area.
  • the operator is made to recognize the reference area, and within the reference area.
  • FIG. 1 is a perspective view of a combination weighing device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of the combination weighing device of FIG.
  • FIG. 3 is a plan view showing an example of a reference area set for an article in the stay area.
  • FIG. 4 is a block diagram of a combination weighing device according to a modification.
  • FIG. 5A and FIG. 5B are plan views showing other examples of the reference region.
  • the combination weighing device 1 includes a stay unit 2, a plurality of feeders 3, a plurality of pool hoppers 4, a plurality of weighing hoppers 5, a pair of conveyors 6, and a chute 7.
  • the combination weighing device 1 measures an article supplied from the outside (such as agricultural products, marine products, processed foods, etc., having a variation in unit mass) to a target measurement value, and supplies it to a bag making and packaging machine, for example. To do.
  • the bag making and packaging machine packs articles supplied by being weighed by the combination weighing device 1 while forming a film into a bag having a predetermined capacity.
  • the staying part 2 is arranged, for example, below the transport end of a transport conveyor (not shown) that transports articles.
  • the stay part 2 has, for example, a flat placement surface 2a.
  • the mounting surface 2a has a rectangular shape, for example.
  • the article dropped from the transport end of the transport conveyor is received by the placement surface 2a and placed on the placement surface 2a.
  • the article placed on the placement surface 2 a is discharged to the feeder 3 by the discharge unit 11. That is, the area on the placement surface 2a is a stay area R1 for temporarily staying the article.
  • the mounting surface 2a is provided with a plurality of discharge ports 2b corresponding to the plurality of feeders 3, respectively.
  • the discharge ports 2b are located on one end side (front side) in the short direction of the placement surface 2a, and are arranged in a line along the longitudinal direction of the placement surface 2a.
  • the article placed on the placement surface 2a is discharged from the discharge port 2b to the feeder 3.
  • the retention part 2 may be comprised so that the mounting surface 2a can be vibrated so that the article
  • the plurality of feeders 3 are arranged in a line below the staying portion 2.
  • Half of the plurality of feeders 3 is arranged on one side in the horizontal direction with respect to the center line CL parallel to the vertical direction, and the other half of the plurality of feeders 3 is on the other side in the horizontal direction with respect to the center line CL.
  • Each feeder 3 has a conveyance surface 3a inclined with respect to the horizontal direction.
  • the articles discharged from the discharge port 2b of the staying part 2 are supplied to the upper end side of the conveying surface 3a of each feeder 3.
  • Each feeder 3 conveys articles toward the pool hopper 4 by vibrating the conveyance surface 3a.
  • the plurality of pool hoppers 4 are arranged in a line below the plurality of feeders 3. Each pool hopper 4 is disposed below the lower end of the transport surface 3 a of each feeder 3. Each pool hopper 4 has a gate 4a that can be opened and closed with respect to its bottom. Each pool hopper 4 receives and temporarily stores articles discharged from the lower end of the corresponding feeder 3 by closing the gate 4a. Further, each pool hopper 4 opens the gate 4a to discharge the temporarily stored articles downward.
  • the plurality of weighing hoppers 5 are arranged in a line below the plurality of pool hoppers 4. Each weighing hopper 5 is disposed below the gate 4 a of each pool hopper 4. Each weighing hopper 5 has a gate 5a that can be opened and closed with respect to its bottom. Each weighing hopper 5 receives the articles discharged from the corresponding pool hopper 4 and temporarily stores them by closing the gate 5a. Furthermore, each weighing hopper 5 discharges the temporarily stored article downward by opening the gate 5a.
  • the pair of conveyors 6 are arranged below the plurality of weighing hoppers 5 in the horizontal direction.
  • One of the pair of conveyors 6 extends in the horizontal direction over half of the plurality of weighing hoppers 5 disposed on one side in the horizontal direction with respect to the center line CL, and is discharged from the weighing hoppers 5.
  • the article is received and conveyed toward the chute 7.
  • the other of the pair of conveyors 6 extends in the horizontal direction over the lower half of the other half of the plurality of weighing hoppers 5, receives articles discharged from the weighing hoppers 5, and conveys the articles toward the chute 7.
  • the chute 7 is disposed below the pair of conveyors 6 so as to be positioned between the pair of conveyors 6 when viewed from the vertical direction.
  • the chute 7 is, for example, a quadrangular frustum-shaped cylinder that tapers downward.
  • the chute 7 receives the articles conveyed by each of the pair of conveyors 6 and discharges them downward from the discharge port 7a.
  • the article discharged from the chute 7 is supplied to, for example, the above-described bag making and packaging machine.
  • the measuring unit 8 is arranged in the frame 13.
  • the weighing unit 8 has a plurality of load cells 8a.
  • Each load cell 8a supports a corresponding weighing hopper 5.
  • Each load cell 8a outputs a weighing value corresponding to the mass of the article when the article is temporarily stored in each weighing hopper 5.
  • the detection unit 9 and the discharge unit 11 each constitute a part of the robot 12.
  • the robot 12 may be configured integrally with the frame 13, or may be configured separately from the frame 13 and disposed in the vicinity of the frame 13.
  • the detection unit 9 is provided on the upper part of the main body 12 a of the robot 12.
  • the detection unit 9 detects the staying state of the article staying in the staying region R1.
  • the detection unit 9 is an infrared sensor that detects a region where an article exists in the stay region R1, for example.
  • the region where the article exists is a region in the three-dimensional space, and includes a range where the article exists when viewed from the vertical direction, and a height of the article in the range.
  • the height of the article is a distance between the placement surface 2a and the upper part of the article.
  • the detection unit 9 may be any detection means as long as it can detect the staying state of the article staying in the staying region R1.
  • the detection unit 9 may be a camera that captures the stay region R1 from above.
  • the discharge unit 11 discharges a part of the article staying in the stay region R1 from the discharge port 2b to the feeder 3.
  • the discharge part 11 is a manipulator which has a pair of arms 11a extended from the intermediate part of the main-body part 12a, and the hand part 11b provided in the front-end
  • Each arm 11a is, for example, an articulated arm.
  • the hand unit 11b is used to grip a part of the article placed on the placement surface 2a. Details of the discharge of the article by the discharge unit 11 will be described later.
  • the discharge part 11 should just have at least 1 arm 11a, for example, may have 4 arms 11a.
  • the control unit 20 is arranged in the frame 13.
  • the control unit 20 is an arithmetic unit having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
  • the control unit 20 is a combination of vibration operation of the staying unit 2, transport operation of the feeder 3, opening / closing operation of the gate 4 a of each pool hopper 4, opening / closing operation of the gate 5 a of each weighing hopper 5, and transport operation of each conveyor 6.
  • the operation of each part of the weighing device 1 is controlled.
  • the control unit 20 is communicably connected to the bag making and packaging machine.
  • the staying part 2, the feeder 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, the pair of conveyors 6, and the chute 7 are supported directly or indirectly by the frame 13.
  • the control unit 20 executes a combination weighing process.
  • the control unit 20 stores the measurement value measured by the measurement unit 8 and the measurement hopper 5 that stores articles corresponding to the measurement value in association with each other.
  • the control unit 20 selects a combination of measurement values so that the total value becomes the target measurement value from a plurality of measurement values measured by the measurement unit 8 and associated with each measurement hopper 5. More specifically, the control unit 20 selects a combination of measurement values from a plurality of measurement values output by the measurement unit 8 so that the total value falls within a predetermined range having the target measurement value as a lower limit value. Then, the control unit 20 causes the weighing hopper 5 corresponding to the combination to discharge the article.
  • control unit 20 supplies the article to be supplied to the at least one weighing hopper 5 based on the stay state of the article in the stay region R1 detected by the detection unit 9 (hereinafter also referred to as a target supply amount). It also functions as an area setting unit 21 that sets the reference area R2 corresponding to the item in the stay area R1.
  • the reference region R2 is set as shown in FIG. 3, for example.
  • the reference region R2 will be described with reference to FIG. In FIG. 3, a range in which the article exists in the stay region R ⁇ b> 1 is indicated by a symbol A.
  • the reference region R2 is a region in a three-dimensional space.
  • the reference region R2 has a uniform shape in the vertical direction across the placement surface 2a and the upper part of the article.
  • the shape of the reference region R2 viewed from the vertical direction is a square shape.
  • a plurality of reference regions R2 may be set so as to be separated from each other.
  • two reference regions R2 corresponding to the number of arms 11a arranged in the discharge unit 11 are set.
  • the target supply amount is the supply amount of the articles to be supplied to one empty weighing hopper 5 (which does not store the articles).
  • the target supply amount is set based on the target measurement value in the combination measurement process, for example.
  • the target supply amount is set based on a value obtained by dividing the target measurement value by the number of weighing hoppers 5 combined in the combination weighing process (target measurement value per measurement hopper 5).
  • the target supply amount is a value obtained by dividing the target weighing value per weighing hopper 5 by the density.
  • the amount of articles existing in the reference region R2 substantially matches the target supply amount.
  • the amount of articles in the reference area R2 depends on the height of the articles in the reference area R2. Therefore, when viewed from the vertical direction, the areas of the plurality of reference regions R2 may be different from each other.
  • Articles in the reference area R2 are discharged from the staying section 2 by the discharge section 11 so as to be supplied to the weighing hopper 5 to which the articles are to be supplied. More specifically, the discharge unit 11 grips the article in the reference region R2 by the hand unit 11b, and moves the hand unit 11b by the arm 11a, whereby the article is discharged to the discharge port 2b corresponding to the empty weighing hopper 5. To discharge. Thereby, the articles in the reference area R2 are supplied to the empty weighing hopper 5.
  • the discharge part 11 may perform the discharge
  • the combination weighing device 1 the reference corresponding to the supply amount (target supply amount) of the articles to be supplied to at least one weighing hopper 5 based on the staying state of the articles staying in the stay region R1.
  • Region R2 is set to the article in staying region R1. Accordingly, for example, by putting the articles in the reference region R2 into the weighing hopper 5 by the discharge unit 11 as described above, it is possible to stably put an appropriate amount of articles into the weighing hopper 5. Therefore, the combination weighing device 1 can improve the measurement accuracy in combination weighing.
  • the combination weighing device 1 since it is possible to suppress the occurrence of overscale and the like, it is possible to improve the operating rate.
  • articles are stably put into the weighing hopper 5, the number of weighing hoppers 5 can be reduced, and the apparatus can be downsized.
  • the target supply amount is set based on the target measurement value. As a result, it is possible to put an amount of articles corresponding to the target measurement value related to the combination weighing into the weighing hopper 5.
  • the staying part 2 has the placement surface 2a on which the article is placed, and the region setting unit 21 sets the reference region R2 to the article on the placement surface 2a. Thereby, it is possible to easily detect the staying state of the article and to easily discharge the article from the staying portion 2.
  • the combination weighing device 1 further includes a discharge unit 11 that discharges the articles in the reference region R2 set by the region setting unit 21 from the staying unit 2 so as to be supplied to the weighing hopper 5 to which the articles are to be supplied. .
  • a discharge unit 11 that discharges the articles in the reference region R2 set by the region setting unit 21 from the staying unit 2 so as to be supplied to the weighing hopper 5 to which the articles are to be supplied.
  • the discharge unit 11 may not be provided as in the modification shown in FIG. In this case, the operator manually discharges the articles in the reference area R2 from the discharge port 2b.
  • the combination weighing device 1 includes a projection unit 22 that projects the reference region R2 set by the region setting unit 21 onto the article in the staying region R1.
  • the projection unit 22 is, for example, a projector that projects the reference region R2 so as to be distinguishable from portions other than the reference region R2.
  • the projection unit 22 may project a boundary line of the reference region R2, or may project an image on the entire reference region R2.
  • the projection unit 22 is provided, for example, on the upper part of the main body 12a of the robot 12 so as to be adjacent to the detection unit 9, and projects an output image from above to an article in the reference region R2. Also in such a modification, by projecting the reference region R2 onto the article in the staying region R1, the operator can recognize the reference region R2, and the article in the reference region R2 is put into the weighing hopper 5, An appropriate amount of articles can be stably put into the weighing hopper 5. As a result, it is possible to improve the measurement accuracy and the operation rate in combination weighing.
  • the combination weighing device 1 includes a display unit 23 that displays information on the reference region R2 set by the region setting unit 21.
  • the display unit 23 is a display that displays an image corresponding to the reference region R2 on the display surface by superimposing the image corresponding to the reference region R2 on the image corresponding to the stay region R1, for example.
  • the display unit 23 is fixed to the frame 13 so that the operator can visually recognize the display unit 23, for example. Even with this configuration, by displaying information on the reference region R2 on the display unit 23, the operator can recognize the reference region R2, and the articles in the reference region R2 are put into the weighing hopper 5, so that an appropriate amount can be obtained. The article can be stably put into the weighing hopper 5.
  • the combination weighing device 1 may include only one of the projection unit 22 and the display unit 23.
  • the projection unit 22 and the display unit 23 may be provided in addition to the discharge unit 11.
  • the reference region R2 may have an arbitrary shape.
  • the reference region R2 may be circular when viewed from the vertical direction.
  • the reference region R ⁇ b> 2 may correspond to the supply amount of articles to be supplied to two or more weighing hoppers 5.
  • the reference region R2 may correspond to the supply amount of articles to be supplied to the two weighing hoppers 5.
  • the discharge unit 11 or the operator divides the article in the reference region R2 into two along the center line X, and puts each of the obtained articles into separate weighing hoppers 5. Further, as shown in FIG.
  • each of a plurality of regions divided in a lattice pattern by a plurality of straight lines Y may be a reference region R2.
  • the reference region R2 may not be set between the placement surface 2a and the upper part of the article, and may be set only on the upper side of the article, for example.
  • the target supply amount may be set based on a measurement value associated with the measurement hopper 5.
  • the supply amount of articles to be supplied to the weighing hopper 5 is a value obtained by subtracting the predetermined amount from the target measured value per weighing hopper 5. It may be.
  • the target supply amount is set based on the measurement value associated with the weighing hopper 5, it is possible to put an amount of articles corresponding to the current storage amount of the weighing hopper 5 into the weighing hopper 5.
  • the target supply amount is not necessarily set based on the target measurement value, and may be a fixed value set in advance based on the specification of the measurement hopper 5, for example.
  • cleaning on the mounting surface 2a may be performed by the discharge unit 11.
  • the time required for cleaning can be shortened compared with the case where cleaning is performed manually, and thus the setup time can be shortened.
  • the retention part 2 is not restricted to what has the mounting surface 2a, You may be arbitrary shapes.
  • the staying part 2 may be one in which articles are deposited in the storage container.
  • the combination weighing device 1 may include an arithmetic device that functions as the region setting unit 21, separately from the control unit 20.
  • the detection unit 9 and the discharge unit 11 are integrally formed as a part of the robot 12, but the detection unit 9 and the discharge unit 11 may be configured separately.
  • the conveyance amount of the feeder 3 may be detected by the detection unit 9.
  • the control unit 20 increases the feeding force of the feeder 3 (for example, amplitude in vibration of the conveyance surface 3a) when the conveyance amount of the feeder 3 detected by the detection unit 9 is small, and the feeder when the conveyance amount is large.
  • the feeding force of 3 may be decreased.
  • the feeder 3 is not necessarily provided.
  • the discharge unit 11 may transfer the article in the reference region R2 set by the region setting unit 21 and directly discharge it to the supply target of the article. More specifically, the discharge unit 11 may discharge the article directly to the pool hopper 4 by holding the article in the reference region R2 by the hand unit 11b and moving the hand unit 11b by the arm 11a. . In this case, it is possible to speed up the supply of articles to the weighing hopper 5.
  • the feeder 3 and the pool hopper 4 may not be provided, and in this case, the discharge unit 11 may discharge the articles in the reference region R2 directly to the weighing hopper 5. That is, the article supply target may be the pool hopper 4 or the weighing hopper 5.
  • the article in the reference region R2 may be directly discharged to the supply target of the article by manual work. Also in these cases, it is possible to speed up the supply of articles to the weighing hopper 5.
  • the above embodiment can also be regarded as an embodiment of a combination weighing system.
  • the combination weighing device 1 does not include the detection unit 9 and the discharge unit 11, and the staying unit 2, the plurality of feeders 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, and a pair of conveyors 6, a chute 7, a weighing unit 8, and a control unit 20.
  • the control unit 20 and the region setting unit 21 are configured separately.
  • the combination weighing system includes such a combination weighing device 1, a detection unit 9, and a region setting unit 21.
  • the combination weighing system may further include a discharge unit 11.
  • the detection unit 9 and the discharge unit 11 may be integrally configured as a robot 12.
  • the region setting unit 21 may be disposed in the robot 12, for example. Even with such a combination weighing system, as in the above embodiment, it is possible to stably put an appropriate amount of articles into the weighing hopper 5 and improve the weighing accuracy and the operation rate in combination weighing. .
  • the above embodiment can be regarded as an embodiment of an area setting device used together with the combination weighing device 1.
  • the combination weighing device 1 does not include the detection unit 9 and the discharge unit 11, and the staying unit 2, the plurality of feeders 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, and the pair of conveyors 6 , A chute 7, a weighing unit 8, and a control unit 20.
  • the control unit 20 and the region setting unit 21 are configured separately.
  • the region setting device includes a detection unit 9 and a region setting unit 21.
  • the area setting device may further include a discharge unit 11.
  • the detection unit 9 and the discharge unit 11 may be integrally configured as a robot 12.
  • the region setting unit 21 may be disposed in the robot 12, for example. Even with such a region setting device, it is possible to stably put an appropriate amount of articles into the weighing hopper 5 as in the above-described embodiment, and it is possible to improve the weighing accuracy and the operation rate in combination weighing. .

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  • General Physics & Mathematics (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)

Abstract

This combination weighing device is provided with a retaining part having a retaining area for temporarily retaining articles, a plurality of hoppers for receiving some of the articles retained in the retaining area and temporarily storing the articles, a weighing unit for outputting weighed values corresponding to the weights of the articles stored in the hoppers, a control unit for selecting a weighed value combination from among the plurality of weighed values that have been weighed by the weighing unit and associated with the plurality of hoppers such that the total value of the combination is a target weighed value and causing the hoppers corresponding to the combination to discharge the articles, a detection unit for detecting the retention state of the articles retained in the retaining area, and an area setting unit for using the retention state detected by the detection unit to set, for the articles in the retaining area, a standard area corresponding to the amount of articles to be provided to at least one hopper.

Description

組合せ計量装置、組合せ計量システム、領域設定装置Combination weighing device, combination weighing system, area setting device
　本発明の一側面は、組合せ計量装置、組合せ計量システム及び領域設定装置に関する。 One aspect of the present invention relates to a combination weighing device, a combination weighing system, and an area setting device.
　例えば特許文献１に記載された組合せ計量装置は、物品を一時的に滞留させるための滞留領域を有する滞留部と、滞留領域に滞留する物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、ホッパに貯留された物品の質量に応じた計量値を出力する計量部と、を備える。このような組合せ計量装置では、計量部によって計量され且つ複数のホッパにそれぞれ対応付けられた複数の計量値から、合計値が目標計量値となるように計量値の組合せを選択し、当該組合せに対応するホッパに物品を排出させる組合せ計量処理が実行される。 For example, the combination weighing device described in Patent Document 1 receives a staying part having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article. And a weighing unit that outputs a weighing value corresponding to the mass of the article stored in the hopper. In such a combination weighing device, a combination of measurement values is selected from a plurality of measurement values weighed by the weighing unit and respectively associated with a plurality of hoppers so that the total value becomes a target measurement value. A combination weighing process for discharging the article to the corresponding hopper is executed.
実用新案登録第３２０１２９９号公報Utility Model Registration No. 3201299
　上述したような組合せ計量装置では、手作業により、滞留領域に滞留する物品の一部がホッパに投入される。このような投入作業では、ホッパに投入される物品の量は、作業者の判断に依存し、作業者の作業への習熟度等によってばらつく。そのため、例えば本来供給されるべき供給量を大きく超える量の物品がホッパに投入される場合がある。この場合、組合せ計量における計量精度が低下する。また、この場合、オーバースケール等が発生することによって稼働率が低下する。ここで、オーバースケール等とは、例えば、複数のホッパにそれぞれ対応付けられた複数の計量値の組合せが、目標計量値を基準とする所定範囲内に含まれない場合を意味する。また、別の場合としては、一のホッパの計量値が目標計量値を基準とする所定範囲を超えている場合を意味する。 In the combination weighing device as described above, a part of the articles staying in the staying area is manually put into the hopper. In such an input operation, the amount of articles input to the hopper depends on the judgment of the operator and varies depending on the proficiency level of the operator. Therefore, for example, an amount of articles that greatly exceeds the supply amount that should be supplied may be put into the hopper. In this case, the measurement accuracy in combination weighing is reduced. In this case, the operating rate is reduced due to occurrence of overscale or the like. Here, the overscale or the like means, for example, a case where a combination of a plurality of measurement values respectively associated with a plurality of hoppers is not included in a predetermined range based on the target measurement value. In another case, the measured value of one hopper exceeds the predetermined range with the target measured value as a reference.
　本発明の一側面は、組合せ計量における計量精度の向上及び稼働率の向上を図れる組合せ計量装置、組合せ計量システム及び領域設定装置の提供を目的とする。 An object of one aspect of the present invention is to provide a combination weighing device, a combination weighing system, and an area setting device that can improve the measurement accuracy and the operation rate in combination weighing.
　本発明の一側面に係る組合せ計量装置は、物品を一時的に滞留させるための滞留領域を有する滞留部と、滞留領域に滞留する物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、ホッパに貯留された物品の質量に応じた計量値を出力する計量部と、計量部によって計量され且つ複数のホッパにそれぞれ対応付けられた複数の計量値から、合計値が目標計量値となるように計量値の組合せを選択し、当該組合せに対応するホッパに物品を排出させる制御部と、滞留領域に滞留する物品の滞留状態を検出する検出部と、検出部により検出される滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域を滞留領域内の物品に設定する領域設定部と、を備える。 The combination weighing device according to one aspect of the present invention receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article. A total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers. A combination of weighing values is selected so as to be a weighing value, and a control unit that discharges articles to a hopper corresponding to the combination, a detection unit that detects a staying state of articles staying in the staying area, and a detection unit An area setting unit that sets a reference area corresponding to the supply amount of articles to be supplied to at least one hopper to articles in the stay area based on the stay state.
　この組合せ計量装置では、滞留領域に滞留する物品の滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域が滞留領域内の物品に設定される。これにより、例えば、設定された基準領域を滞留領域内の物品に投影したり、設定された基準領域に関する情報を表示部に表示することによって作業者に基準領域を認識させ、当該基準領域内に存在する物品をホッパに投入させることで、適切な量の物品を安定的にホッパに投入することが可能となる。よって、この組合せ計量装置では、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 In this combination weighing device, a reference area corresponding to the supply amount of articles to be supplied to at least one hopper is set in the articles in the stay area based on the stay state of the articles staying in the stay area. Thereby, for example, by projecting the set reference area onto an article in the stay area or displaying information on the set reference area on the display unit, the operator is made to recognize the reference area, and within the reference area. By putting the existing articles into the hopper, it is possible to stably put an appropriate amount of articles into the hopper. Therefore, in this combination weighing device, it is possible to improve the measurement accuracy and the operation rate in combination weighing.
　一実施形態においては、供給量は、目標計量値に基づいて設定されてもよい。この構成では、組合せ計量に係る目標計量値に応じた量の物品をホッパに投入することが可能となる。 In one embodiment, the supply amount may be set based on a target measurement value. In this configuration, it is possible to put an amount of articles corresponding to the target measurement value related to the combination weighing into the hopper.
　一実施形態においては、供給量は、ホッパに対応付けられた計量値に基づいて設定されてもよい。この構成では、現在のホッパの貯留量に応じた量の物品をホッパに投入することが可能となる。 In one embodiment, the supply amount may be set based on a measurement value associated with the hopper. In this configuration, it is possible to put an amount of articles corresponding to the current storage amount of the hopper into the hopper.
　一実施形態においては、領域設定部により設定される基準領域を滞留領域内の物品に投影する投影部を更に備えてもよい。この構成では、作業者に基準領域を容易に認識させることが可能となる。 In one embodiment, a projection unit that projects the reference region set by the region setting unit onto the article in the staying region may be further provided. In this configuration, the operator can easily recognize the reference area.
　一実施形態においては、領域設定部により設定される基準領域に関する情報を表示する表示部を更に備えてもよい。この構成では、作業者に基準領域を容易に認識させることが可能となる。 In one embodiment, the information processing apparatus may further include a display unit that displays information related to the reference region set by the region setting unit. In this configuration, the operator can easily recognize the reference area.
　一実施形態においては、滞留部は、物品が載置される載置面を有し、領域設定部は、基準領域を載置面上の物品に設定してもよい。この構成では、物品の滞留状態の検出を容易化できると共に、滞留部からの物品の排出を容易化できる。 In one embodiment, the staying unit may have a placement surface on which an article is placed, and the region setting unit may set the reference region to the article on the placement surface. In this configuration, it is possible to easily detect the staying state of the article and to easily discharge the article from the staying portion.
　一実施形態においては、領域設定部により設定される基準領域内の物品を、当該物品を供給すべきホッパに供給されるように滞留部から排出する排出部を更に備えてもよい。この構成では、適切な量の物品を一層安定的にホッパに投入することが可能となる。 In one embodiment, the apparatus may further include a discharge unit that discharges the article in the reference area set by the area setting unit from the staying part so as to be supplied to the hopper to which the article is to be supplied. With this configuration, it is possible to put an appropriate amount of articles into the hopper more stably.
　一実施形態においては、排出部は、領域設定部により設定される基準領域内の物品を移送し、当該物品の供給対象へ直接に排出してもよい。この構成では、ホッパへの物品の供給を高速化することが可能となる。 In one embodiment, the discharge unit may transfer the article in the reference area set by the area setting unit and directly discharge it to the supply target of the article. With this configuration, it is possible to speed up the supply of articles to the hopper.
　一実施形態においては、滞留領域に滞留する物品が手作業によりホッパに供給されてもよい。この構成では、手作業により物品がホッパに供給される場合でも、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 In one embodiment, an article staying in the staying area may be manually supplied to the hopper. With this configuration, even when the article is manually supplied to the hopper, it is possible to improve the weighing accuracy and the operation rate in the combination weighing.
　本発明の一側面に係る組合せ計量システムは、物品を一時的に滞留させるための滞留領域を有する滞留部と、滞留領域に滞留する物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、ホッパに貯留された物品の質量に応じた計量値を出力する計量部と、計量部によって計量され且つ複数のホッパにそれぞれ対応付けられた複数の計量値から、合計値が目標計量値となるように計量値の組合せを選択し、当該組合せに対応するホッパに物品を排出させる制御部と、を具備する組合せ計量装置と、滞留領域に滞留する物品の滞留状態を検出する検出部と、検出部により検出される滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域を滞留領域内の物品に設定する領域設定部と、を備える。 The combination weighing system according to one aspect of the present invention receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article. A total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers. A combination weighing device including a control unit that selects a combination of measurement values so as to obtain a measurement value, and discharges the article to a hopper corresponding to the combination, and detection for detecting a staying state of the article staying in the staying area A region setting unit that sets a reference region corresponding to the supply amount of the article to be supplied to at least one hopper based on the staying state detected by the detection unit, to the article in the staying region, Provided.
　この組合せ計量システムでは、滞留領域に滞留する物品の滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域が滞留領域内の物品に設定される。これにより、例えば、設定された基準領域を滞留領域内の物品に投影したり、設定された基準領域に関する情報を表示部に表示することによって作業者に基準領域を認識させ、当該基準領域内に存在する物品をホッパに投入させることで、適切な量の物品を安定的にホッパに投入することが可能となる。よって、この組合せ計量システムでは、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 In this combination weighing system, a reference area corresponding to the supply amount of articles to be supplied to at least one hopper is set in the articles in the stay area based on the stay state of the articles staying in the stay area. Thereby, for example, by projecting the set reference area onto an article in the stay area or displaying information on the set reference area on the display unit, the operator is made to recognize the reference area, and within the reference area. By putting the existing articles into the hopper, it is possible to stably put an appropriate amount of articles into the hopper. Therefore, in this combination weighing system, it is possible to improve the measurement accuracy and the operation rate in combination weighing.
　本発明の一側面に係る領域設定装置は、物品を一時的に滞留させるための滞留領域を有する滞留部と、滞留領域に滞留する物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、ホッパに貯留された物品の質量に応じた計量値を出力する計量部と、計量部によって計量され且つ複数のホッパにそれぞれ対応付けられた複数の計量値から、合計値が目標計量値となるように計量値の組合せを選択し、当該組合せに対応するホッパに物品を排出させる制御部と、を備える組合せ計量装置と共に用いられる領域設定装置であって、滞留領域に滞留する物品の滞留状態を検出する検出部と、検出部により検出される滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域を滞留領域内の物品に設定する領域設定部と、を備える。 An area setting device according to one aspect of the present invention receives a staying portion having a staying area for temporarily staying an article and a part of the article staying in the staying area, and temporarily stores the article. A total value is a target from a plurality of hoppers, a weighing unit that outputs a weighing value according to the mass of the article stored in the hopper, and a plurality of weighing values that are weighed by the weighing unit and are respectively associated with the plurality of hoppers. An area setting device that is used in combination with a combination weighing device that includes a control unit that selects a combination of weighing values so as to obtain a weighing value, and discharges the article to a hopper corresponding to the combination, and the article staying in the staying region A detection unit for detecting the staying state of the product and a reference region corresponding to the supply amount of the article to be supplied to at least one hopper based on the staying state detected by the detection unit. And a region setting unit that sets a.
　この領域設定装置では、滞留領域に滞留する物品の滞留状態に基づいて、少なくとも１つのホッパに供給されるべき物品の供給量に対応する基準領域が滞留領域内の物品に設定される。これにより、例えば、設定された基準領域を滞留領域内の物品に投影したり、設定された基準領域に関する情報を表示部に表示することによって作業者に基準領域を認識させ、当該基準領域内に存在する物品をホッパに投入させることで、適切な量の物品を安定的にホッパに投入することが可能となる。よって、この領域設定装置では、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 In this area setting device, based on the staying state of the articles staying in the staying area, a reference area corresponding to the supply amount of the articles to be supplied to at least one hopper is set as the article in the staying area. Thereby, for example, by projecting the set reference area onto an article in the stay area or displaying information on the set reference area on the display unit, the operator is made to recognize the reference area, and within the reference area. By putting the existing articles into the hopper, it is possible to stably put an appropriate amount of articles into the hopper. Therefore, in this area setting device, it is possible to improve the measurement accuracy and the operation rate in the combination weighing.
　本発明の一側面によれば、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 According to one aspect of the present invention, it is possible to improve the measurement accuracy and the operation rate in combination weighing.
図１は、本発明の一実施形態に係る組合せ計量装置の斜視図である。FIG. 1 is a perspective view of a combination weighing device according to an embodiment of the present invention. 図２は、図１の組合せ計量装置のブロック図である。FIG. 2 is a block diagram of the combination weighing device of FIG. 図３は、滞留領域内の物品に設定される基準領域の例を示す平面図である。FIG. 3 is a plan view showing an example of a reference area set for an article in the stay area. 図４は、変形例に係る組合せ計量装置のブロック図である。FIG. 4 is a block diagram of a combination weighing device according to a modification. 図５（ａ）及び図５（ｂ）は、基準領域の他の例を示す平面図である。FIG. 5A and FIG. 5B are plan views showing other examples of the reference region.
　以下、本発明の一実施形態について、図面を参照しつつ詳細に説明する。なお、以下の説明において、同一又は相当要素には同一符号を付し、重複する説明を省略する。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.
　図１及び図２に示されるように、組合せ計量装置１は、滞留部２と、複数のフィーダ３と、複数のプールホッパ４と、複数の計量ホッパ５と、一対のコンベア６と、シュート７と、計量部８と、検出部９と、排出部１１と、制御部２０と、を備える。組合せ計量装置１は、外部から供給される物品（農産物、水産物、加工食品等のように、単体質量にばらつきのある物品）を目標計量値となるように計量し、例えば製袋包装機に供給する。製袋包装機は、フィルムを所定容量の袋に成形しつつ、組合せ計量装置１によって計量されて供給された物品を袋詰めする。 As shown in FIGS. 1 and 2, the combination weighing device 1 includes a stay unit 2, a plurality of feeders 3, a plurality of pool hoppers 4, a plurality of weighing hoppers 5, a pair of conveyors 6, and a chute 7. A measuring unit 8, a detecting unit 9, a discharging unit 11, and a control unit 20. The combination weighing device 1 measures an article supplied from the outside (such as agricultural products, marine products, processed foods, etc., having a variation in unit mass) to a target measurement value, and supplies it to a bag making and packaging machine, for example. To do. The bag making and packaging machine packs articles supplied by being weighed by the combination weighing device 1 while forming a film into a bag having a predetermined capacity.
　滞留部２は、例えば物品を搬送する搬送コンベア（図示略）の搬送端の下方に配置される。滞留部２は、例えば平坦な載置面２ａを有する。図３に示されるように、載置面２ａの形状は、例えば長方形状である。搬送コンベアの搬送端から落下した物品は、載置面２ａで受けられて載置面２ａ上に載置される。載置面２ａ上に載置された物品は、排出部１１によりフィーダ３へ排出される。つまり、載置面２ａ上の領域は、物品を一時的に滞留させるための滞留領域Ｒ１である。載置面２ａには、複数のフィーダ３にそれぞれ対応する複数の排出口２ｂが設けられる。排出口２ｂは、載置面２ａの短手方向の一端側（前方側）に位置し、載置面２ａの長手方向に沿って一列に並んで設けられる。載置面２ａ上に載置された物品は、排出口２ｂからフィーダ３へ排出される。なお、滞留部２は、載置面２ａ上の物品を均せるように、載置面２ａを振動可能に構成されてもよい。 The staying part 2 is arranged, for example, below the transport end of a transport conveyor (not shown) that transports articles. The stay part 2 has, for example, a flat placement surface 2a. As shown in FIG. 3, the mounting surface 2a has a rectangular shape, for example. The article dropped from the transport end of the transport conveyor is received by the placement surface 2a and placed on the placement surface 2a. The article placed on the placement surface 2 a is discharged to the feeder 3 by the discharge unit 11. That is, the area on the placement surface 2a is a stay area R1 for temporarily staying the article. The mounting surface 2a is provided with a plurality of discharge ports 2b corresponding to the plurality of feeders 3, respectively. The discharge ports 2b are located on one end side (front side) in the short direction of the placement surface 2a, and are arranged in a line along the longitudinal direction of the placement surface 2a. The article placed on the placement surface 2a is discharged from the discharge port 2b to the feeder 3. In addition, the retention part 2 may be comprised so that the mounting surface 2a can be vibrated so that the article | item on the mounting surface 2a may be leveled.
　複数のフィーダ３は、滞留部２の下方に一列に並んで配置される。複数のフィーダ３の半分は、鉛直方向に平行な中心線ＣＬに対して水平方向の一方側に配置され、複数のフィーダ３の残りの半分は、中心線ＣＬに対して水平方向の他方側に配置される。各フィーダ３は、水平方向に対して傾斜した搬送面３ａを有する。各フィーダ３の搬送面３ａの上端部側に、滞留部２の排出口２ｂから排出された物品が供給される。各フィーダ３は、搬送面３ａを振動させることで、物品をプールホッパ４に向かって搬送する。 The plurality of feeders 3 are arranged in a line below the staying portion 2. Half of the plurality of feeders 3 is arranged on one side in the horizontal direction with respect to the center line CL parallel to the vertical direction, and the other half of the plurality of feeders 3 is on the other side in the horizontal direction with respect to the center line CL. Be placed. Each feeder 3 has a conveyance surface 3a inclined with respect to the horizontal direction. The articles discharged from the discharge port 2b of the staying part 2 are supplied to the upper end side of the conveying surface 3a of each feeder 3. Each feeder 3 conveys articles toward the pool hopper 4 by vibrating the conveyance surface 3a.
　複数のプールホッパ４は、複数のフィーダ３の下方に一列に並んで配置される。各プールホッパ４は、各フィーダ３の搬送面３ａの下端部の下方に配置される。各プールホッパ４は、その底部に対して開閉可能なゲート４ａを有する。各プールホッパ４は、ゲート４ａを閉じることで、対応するフィーダ３の下端部から排出された物品を受け取って一時的に貯留する。更に、各プールホッパ４は、ゲート４ａを開くことで、一時的に貯留した物品を下方に排出する。 The plurality of pool hoppers 4 are arranged in a line below the plurality of feeders 3. Each pool hopper 4 is disposed below the lower end of the transport surface 3 a of each feeder 3. Each pool hopper 4 has a gate 4a that can be opened and closed with respect to its bottom. Each pool hopper 4 receives and temporarily stores articles discharged from the lower end of the corresponding feeder 3 by closing the gate 4a. Further, each pool hopper 4 opens the gate 4a to discharge the temporarily stored articles downward.
　複数の計量ホッパ５は、複数のプールホッパ４の下方に一列に並んで配置される。各計量ホッパ５は、各プールホッパ４のゲート４ａの下方に配置される。各計量ホッパ５は、その底部に対して開閉可能なゲート５ａを有する。各計量ホッパ５は、ゲート５ａを閉じることで、対応するプールホッパ４から排出された物品を受け取って一時的に貯留する。更に、各計量ホッパ５は、ゲート５ａを開くことで、一時的に貯留した物品を下方に排出する。 The plurality of weighing hoppers 5 are arranged in a line below the plurality of pool hoppers 4. Each weighing hopper 5 is disposed below the gate 4 a of each pool hopper 4. Each weighing hopper 5 has a gate 5a that can be opened and closed with respect to its bottom. Each weighing hopper 5 receives the articles discharged from the corresponding pool hopper 4 and temporarily stores them by closing the gate 5a. Furthermore, each weighing hopper 5 discharges the temporarily stored article downward by opening the gate 5a.
　一対のコンベア６は、複数の計量ホッパ５の下方に水平方向に並んで配置される。一対のコンベア６の一方は、複数の計量ホッパ５のうち中心線ＣＬに対して水平方向の一方側に配置された半分の下方にわたって水平方向に延在し、それらの計量ホッパ５から排出された物品を受けてシュート７に向かって搬送する。一対のコンベア６の他方は、複数の計量ホッパ５の残りの半分の下方にわたって水平方向に延在し、それらの計量ホッパ５から排出された物品を受けてシュート７に向かって搬送する。 The pair of conveyors 6 are arranged below the plurality of weighing hoppers 5 in the horizontal direction. One of the pair of conveyors 6 extends in the horizontal direction over half of the plurality of weighing hoppers 5 disposed on one side in the horizontal direction with respect to the center line CL, and is discharged from the weighing hoppers 5. The article is received and conveyed toward the chute 7. The other of the pair of conveyors 6 extends in the horizontal direction over the lower half of the other half of the plurality of weighing hoppers 5, receives articles discharged from the weighing hoppers 5, and conveys the articles toward the chute 7.
　シュート７は、鉛直方向から見て一対のコンベア６の間に位置するように、一対のコンベア６の下方に配置される。シュート７は、例えば下方に向かって先細りの四角錐台状の筒体である。シュート７は、一対のコンベア６のそれぞれにより搬送される物品を受け取って排出口７ａから下方に排出する。シュート７から排出された物品は、例えば上述した製袋包装機に供給される。 The chute 7 is disposed below the pair of conveyors 6 so as to be positioned between the pair of conveyors 6 when viewed from the vertical direction. The chute 7 is, for example, a quadrangular frustum-shaped cylinder that tapers downward. The chute 7 receives the articles conveyed by each of the pair of conveyors 6 and discharges them downward from the discharge port 7a. The article discharged from the chute 7 is supplied to, for example, the above-described bag making and packaging machine.
　計量部８は、フレーム１３内に配置される。計量部８は、複数のロードセル８ａを有する。各ロードセル８ａは、対応する計量ホッパ５を支持する。各ロードセル８ａは、各計量ホッパ５に物品が一時的に貯留される際に、当該物品の質量に応じた計量値を出力する。 The measuring unit 8 is arranged in the frame 13. The weighing unit 8 has a plurality of load cells 8a. Each load cell 8a supports a corresponding weighing hopper 5. Each load cell 8a outputs a weighing value corresponding to the mass of the article when the article is temporarily stored in each weighing hopper 5.
　検出部９及び排出部１１は、それぞれロボット１２の一部を構成する。ロボット１２は、フレーム１３と一体に構成されてもよいし、フレーム１３と別体に構成されてフレーム１３の近傍に配置されてもよい。検出部９は、ロボット１２の本体部１２ａの上部に設けられる。 The detection unit 9 and the discharge unit 11 each constitute a part of the robot 12. The robot 12 may be configured integrally with the frame 13, or may be configured separately from the frame 13 and disposed in the vicinity of the frame 13. The detection unit 9 is provided on the upper part of the main body 12 a of the robot 12.
　検出部９は、滞留領域Ｒ１に滞留する物品の滞留状態を検出する。検出部９は、例えば滞留領域Ｒ１において物品が存在する領域を検出する赤外線センサである。物品が存在する領域とは、三次元空間における領域であり、鉛直方向から見た場合に物品が存在する範囲、及び当該範囲における物品の高さを含む。物品の高さとは、載置面２ａと物品の上部との間の距離である。なお、検出部９は、滞留領域Ｒ１に滞留する物品の滞留状態を検出可能であればよく、任意の検出手段であってよい。例えば、検出部９は、滞留領域Ｒ１を上方から撮影するカメラであってもよい。 The detection unit 9 detects the staying state of the article staying in the staying region R1. The detection unit 9 is an infrared sensor that detects a region where an article exists in the stay region R1, for example. The region where the article exists is a region in the three-dimensional space, and includes a range where the article exists when viewed from the vertical direction, and a height of the article in the range. The height of the article is a distance between the placement surface 2a and the upper part of the article. The detection unit 9 may be any detection means as long as it can detect the staying state of the article staying in the staying region R1. For example, the detection unit 9 may be a camera that captures the stay region R1 from above.
　排出部１１は、滞留領域Ｒ１に滞留する物品の一部を排出口２ｂからフィーダ３へ排出する。排出部１１は、例えば、本体部１２ａの中間部から延びる一対のアーム１１ａと、各アーム１１ａの先端部に設けられたハンド部１１ｂと、を有するマニピュレータである。各アーム１１ａは、例えば多関節アームである。ハンド部１１ｂは、載置面２ａ上に載置された物品の一部を把持するために用いられる。排出部１１による物品の排出の詳細については後述する。なお、排出部１１は、少なくとも１本のアーム１１ａを有していればよく、例えば４本のアーム１１ａを有してもよい。 The discharge unit 11 discharges a part of the article staying in the stay region R1 from the discharge port 2b to the feeder 3. The discharge part 11 is a manipulator which has a pair of arms 11a extended from the intermediate part of the main-body part 12a, and the hand part 11b provided in the front-end | tip part of each arm 11a, for example. Each arm 11a is, for example, an articulated arm. The hand unit 11b is used to grip a part of the article placed on the placement surface 2a. Details of the discharge of the article by the discharge unit 11 will be described later. In addition, the discharge part 11 should just have at least 1 arm 11a, for example, may have 4 arms 11a.
　制御部２０は、フレーム１３内に配置される。制御部２０は、ＣＰＵ（Central　Processing　Unit）、ＲＯＭ（Read　Only　Memory）、ＲＡＭ（Random　Access　Memory）等を有する演算装置である。制御部２０は、滞留部２の振動動作、フィーダ３の搬送動作、各プールホッパ４のゲート４ａの開閉動作、各計量ホッパ５のゲート５ａの開閉動作、及び各コンベア６の搬送動作等、組合せ計量装置１の各部の動作を制御する。制御部２０は、製袋包装機と通信可能に接続される。なお、滞留部２、フィーダ３、複数のプールホッパ４、複数の計量ホッパ５、一対のコンベア６、及びシュート７は、フレーム１３に直接的に又は間接的に支持される。 The control unit 20 is arranged in the frame 13. The control unit 20 is an arithmetic unit having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control unit 20 is a combination of vibration operation of the staying unit 2, transport operation of the feeder 3, opening / closing operation of the gate 4 a of each pool hopper 4, opening / closing operation of the gate 5 a of each weighing hopper 5, and transport operation of each conveyor 6. The operation of each part of the weighing device 1 is controlled. The control unit 20 is communicably connected to the bag making and packaging machine. The staying part 2, the feeder 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, the pair of conveyors 6, and the chute 7 are supported directly or indirectly by the frame 13.
　制御部２０は、組合せ計量処理を実行する。組合せ計量処理において、制御部２０は、計量部８によって計量された計量値と、当該計量値に対応する物品を貯留する計量ホッパ５とを対応付けて記憶する。制御部２０は、計量部８によって計量され且つ各計量ホッパ５に対応付けられた複数の計量値から、合計値が目標計量値となるように計量値の組合せを選択する。より具体的には、制御部２０は、計量部８によって出力された複数の計量値から、目標計量値を下限値とする所定範囲内に合計値が収まるように計量値の組合せを選択する。そして、制御部２０は、当該組合せに対応する計量ホッパ５に物品を排出させる。 The control unit 20 executes a combination weighing process. In the combination weighing process, the control unit 20 stores the measurement value measured by the measurement unit 8 and the measurement hopper 5 that stores articles corresponding to the measurement value in association with each other. The control unit 20 selects a combination of measurement values so that the total value becomes the target measurement value from a plurality of measurement values measured by the measurement unit 8 and associated with each measurement hopper 5. More specifically, the control unit 20 selects a combination of measurement values from a plurality of measurement values output by the measurement unit 8 so that the total value falls within a predetermined range having the target measurement value as a lower limit value. Then, the control unit 20 causes the weighing hopper 5 corresponding to the combination to discharge the article.
　更に、制御部２０は、検出部９により検出される滞留領域Ｒ１における物品の滞留状態に基づいて、少なくとも１つの計量ホッパ５に供給されるべき物品の供給量（以下、目標供給量ともいう）に対応する基準領域Ｒ２を滞留領域Ｒ１内の物品に設定する領域設定部２１としても機能する。基準領域Ｒ２は、例えば図３に示されるように設定される。以下、図３を参照しつつ、基準領域Ｒ２について説明する。図３では、滞留領域Ｒ１において物品が存在する範囲が符号Ａで示されている。 Further, the control unit 20 supplies the article to be supplied to the at least one weighing hopper 5 based on the stay state of the article in the stay region R1 detected by the detection unit 9 (hereinafter also referred to as a target supply amount). It also functions as an area setting unit 21 that sets the reference area R2 corresponding to the item in the stay area R1. The reference region R2 is set as shown in FIG. 3, for example. Hereinafter, the reference region R2 will be described with reference to FIG. In FIG. 3, a range in which the article exists in the stay region R <b> 1 is indicated by a symbol A.
　基準領域Ｒ２は、三次元空間における領域である。図３の例では、基準領域Ｒ２は、載置面２ａと物品の上部との間にわたって鉛直方向に一様な形状を有する。鉛直方向から見た基準領域Ｒ２の形状は、正方形状である。基準領域Ｒ２は、互いに離間するように複数設定されてよい。図３の例では、排出部１１のアーム１１ａの配置数に対応した２つの基準領域Ｒ２が設定される。 The reference region R2 is a region in a three-dimensional space. In the example of FIG. 3, the reference region R2 has a uniform shape in the vertical direction across the placement surface 2a and the upper part of the article. The shape of the reference region R2 viewed from the vertical direction is a square shape. A plurality of reference regions R2 may be set so as to be separated from each other. In the example of FIG. 3, two reference regions R2 corresponding to the number of arms 11a arranged in the discharge unit 11 are set.
　図３の例では、目標供給量は、空の（物品を貯留していない）１つの計量ホッパ５に供給されるべき物品の供給量である。目標供給量は、例えば組合せ計量処理における目標計量値に基づいて設定される。例えば、目標供給量は、組合せ計量処理において組み合わせられる計量ホッパ５の数で目標計量値を除した値（計量ホッパ５当たりの目標計量値）に基づいて設定される。物品の密度が略一定であるとみなせる場合、目標供給量は、計量ホッパ５当たりの目標計量値を密度で除した値である。基準領域Ｒ２内に存在する物品の量は、目標供給量と略一致する。基準領域Ｒ２内の物品の量は、当該基準領域Ｒ２における物品の高さに依存する。したがって、鉛直方向から見た場合に、複数の基準領域Ｒ２の面積は互いに相違してもよい。 In the example of FIG. 3, the target supply amount is the supply amount of the articles to be supplied to one empty weighing hopper 5 (which does not store the articles). The target supply amount is set based on the target measurement value in the combination measurement process, for example. For example, the target supply amount is set based on a value obtained by dividing the target measurement value by the number of weighing hoppers 5 combined in the combination weighing process (target measurement value per measurement hopper 5). When the density of the articles can be considered to be substantially constant, the target supply amount is a value obtained by dividing the target weighing value per weighing hopper 5 by the density. The amount of articles existing in the reference region R2 substantially matches the target supply amount. The amount of articles in the reference area R2 depends on the height of the articles in the reference area R2. Therefore, when viewed from the vertical direction, the areas of the plurality of reference regions R2 may be different from each other.
　基準領域Ｒ２内の物品は、当該物品を供給すべき計量ホッパ５に供給されるように、排出部１１により滞留部２から排出される。より詳細には、排出部１１は、基準領域Ｒ２内の物品をハンド部１１ｂによって把持し、ハンド部１１ｂをアーム１１ａによって移動させることで、当該物品を空の計量ホッパ５に対応する排出口２ｂへ排出する。これにより、基準領域Ｒ２内の物品が空の計量ホッパ５に供給される。排出部１１は、一対のアーム１１ａを用いて、２つの基準領域Ｒ２内の物品の排出口２ｂへの排出作業を並行して行ってもよい。 Articles in the reference area R2 are discharged from the staying section 2 by the discharge section 11 so as to be supplied to the weighing hopper 5 to which the articles are to be supplied. More specifically, the discharge unit 11 grips the article in the reference region R2 by the hand unit 11b, and moves the hand unit 11b by the arm 11a, whereby the article is discharged to the discharge port 2b corresponding to the empty weighing hopper 5. To discharge. Thereby, the articles in the reference area R2 are supplied to the empty weighing hopper 5. The discharge part 11 may perform the discharge | emission operation | work to the discharge port 2b of the articles | goods in two reference area | region R2 in parallel using a pair of arm 11a.
　以上説明したように、組合せ計量装置１では、滞留領域Ｒ１に滞留する物品の滞留状態に基づいて、少なくとも１つの計量ホッパ５に供給されるべき物品の供給量（目標供給量）に対応する基準領域Ｒ２が滞留領域Ｒ１内の物品に設定される。これにより、例えば上述したような排出部１１によって基準領域Ｒ２内の物品を計量ホッパ５に投入することで、適切な量の物品を安定的に計量ホッパ５に投入することが可能となる。よって、組合せ計量装置１では、組合せ計量における計量精度の向上を図れる。また、組合せ計量装置１では、オーバースケール等が発生することを抑制できるため、稼働率の向上を図れる。更に、計量ホッパ５に物品が安定的に投入されるため、計量ホッパ５の配置数を削減でき、装置を小型化できる。 As described above, in the combination weighing device 1, the reference corresponding to the supply amount (target supply amount) of the articles to be supplied to at least one weighing hopper 5 based on the staying state of the articles staying in the stay region R1. Region R2 is set to the article in staying region R1. Accordingly, for example, by putting the articles in the reference region R2 into the weighing hopper 5 by the discharge unit 11 as described above, it is possible to stably put an appropriate amount of articles into the weighing hopper 5. Therefore, the combination weighing device 1 can improve the measurement accuracy in combination weighing. Moreover, in the combination weighing device 1, since it is possible to suppress the occurrence of overscale and the like, it is possible to improve the operating rate. Furthermore, since articles are stably put into the weighing hopper 5, the number of weighing hoppers 5 can be reduced, and the apparatus can be downsized.
　また、組合せ計量装置１では、目標供給量が目標計量値に基づいて設定される。これにより、組合せ計量に係る目標計量値に応じた量の物品を計量ホッパ５に投入することが可能となる。 In the combination weighing device 1, the target supply amount is set based on the target measurement value. As a result, it is possible to put an amount of articles corresponding to the target measurement value related to the combination weighing into the weighing hopper 5.
　また、組合せ計量装置１では、物品が載置される載置面２ａを滞留部２が有し、領域設定部２１が基準領域Ｒ２を載置面２ａ上の物品に設定する。これにより、物品の滞留状態の検出を容易化できると共に、滞留部２からの物品の排出を容易化できる。 Further, in the combination weighing device 1, the staying part 2 has the placement surface 2a on which the article is placed, and the region setting unit 21 sets the reference region R2 to the article on the placement surface 2a. Thereby, it is possible to easily detect the staying state of the article and to easily discharge the article from the staying portion 2.
　また、組合せ計量装置１は、領域設定部２１により設定される基準領域Ｒ２内の物品を、当該物品を供給すべき計量ホッパ５に供給されるように滞留部２から排出する排出部１１を備える。これにより、適切な量の物品を一層安定的に計量ホッパ５に投入することが可能となる。更に、手作業により物品を排出する場合と比べて、省人化を図れると共に、衛生性を向上できる。更に、複数の計量ホッパ５が満遍なく使用されるため、計量ホッパ５が空のままとなることを抑制でき、稼働率の向上を図れる。 The combination weighing device 1 further includes a discharge unit 11 that discharges the articles in the reference region R2 set by the region setting unit 21 from the staying unit 2 so as to be supplied to the weighing hopper 5 to which the articles are to be supplied. . As a result, it is possible to put an appropriate amount of articles into the weighing hopper 5 more stably. Furthermore, it is possible to save labor and improve hygiene as compared with the case where the article is discharged manually. Furthermore, since the plurality of weighing hoppers 5 are used evenly, it is possible to suppress the weighing hopper 5 from being left empty, and the operating rate can be improved.
　以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではない。例えば図４に示される変形例のように排出部１１が備えられなくてもよい。この場合、作業者が手作業により基準領域Ｒ２内の物品を排出口２ｂから排出させる。変形例では、組合せ計量装置１は、領域設定部２１により設定される基準領域Ｒ２を滞留領域Ｒ１内の物品に投影する投影部２２を備える。投影部２２は、例えば基準領域Ｒ２を当該基準領域Ｒ２以外の部分から識別可能に投影するプロジェクタである。投影部２２は、例えば、基準領域Ｒ２の境界線を投影してもよいし、基準領域Ｒ２の全体に像を投影してもよい。投影部２２は、例えばロボット１２の本体部１２ａの上部に検出部９と隣り合うように設けられ、出力像を上方から基準領域Ｒ２内の物品に向けて投影する。このような変形例によっても、基準領域Ｒ２を滞留領域Ｒ１内の物品に投影することによって作業者に基準領域Ｒ２を認識させ、当該基準領域Ｒ２内の物品を計量ホッパ５に投入させることで、適切な量の物品を安定的に計量ホッパ５に投入することが可能となる。その結果、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment. For example, the discharge unit 11 may not be provided as in the modification shown in FIG. In this case, the operator manually discharges the articles in the reference area R2 from the discharge port 2b. In the modification, the combination weighing device 1 includes a projection unit 22 that projects the reference region R2 set by the region setting unit 21 onto the article in the staying region R1. The projection unit 22 is, for example, a projector that projects the reference region R2 so as to be distinguishable from portions other than the reference region R2. For example, the projection unit 22 may project a boundary line of the reference region R2, or may project an image on the entire reference region R2. The projection unit 22 is provided, for example, on the upper part of the main body 12a of the robot 12 so as to be adjacent to the detection unit 9, and projects an output image from above to an article in the reference region R2. Also in such a modification, by projecting the reference region R2 onto the article in the staying region R1, the operator can recognize the reference region R2, and the article in the reference region R2 is put into the weighing hopper 5, An appropriate amount of articles can be stably put into the weighing hopper 5. As a result, it is possible to improve the measurement accuracy and the operation rate in combination weighing.
　更に、変形例では、組合せ計量装置１は、領域設定部２１により設定される基準領域Ｒ２に関する情報を表示する表示部２３を備える。表示部２３は、例えば滞留領域Ｒ１に対応する画像に基準領域Ｒ２に対応する画像を重畳させて表示面上に表示するディスプレーである。表示部２３は、例えば作業者が視認可能となるようにフレーム１３に固定される。この構成によっても、基準領域Ｒ２に関する情報を表示部２３に表示することによって作業者に基準領域Ｒ２を認識させ、当該基準領域Ｒ２内の物品を計量ホッパ５に投入させることで、適切な量の物品を安定的に計量ホッパ５に投入することが可能となる。その結果、組合せ計量における計量精度の向上及び稼働率の向上を図れる。なお、組合せ計量装置１は、投影部２２及び表示部２３のいずれか一方のみを備えてもよい。排出部１１による物品の排出と手作業による物品の排出とが併用される場合には、排出部１１に加えて投影部２２及び表示部２３の少なくとも一方が備えられてもよい。 Furthermore, in a modification, the combination weighing device 1 includes a display unit 23 that displays information on the reference region R2 set by the region setting unit 21. The display unit 23 is a display that displays an image corresponding to the reference region R2 on the display surface by superimposing the image corresponding to the reference region R2 on the image corresponding to the stay region R1, for example. The display unit 23 is fixed to the frame 13 so that the operator can visually recognize the display unit 23, for example. Even with this configuration, by displaying information on the reference region R2 on the display unit 23, the operator can recognize the reference region R2, and the articles in the reference region R2 are put into the weighing hopper 5, so that an appropriate amount can be obtained. The article can be stably put into the weighing hopper 5. As a result, it is possible to improve the measurement accuracy and the operation rate in combination weighing. The combination weighing device 1 may include only one of the projection unit 22 and the display unit 23. When the discharge of the article by the discharge unit 11 and the discharge of the article by manual work are used in combination, at least one of the projection unit 22 and the display unit 23 may be provided in addition to the discharge unit 11.
　上記実施形態において、基準領域Ｒ２は任意の形状であってよい。例えば、図５（ａ）に示されるように、基準領域Ｒ２は、鉛直方向から見て円形状であってもよい。また、基準領域Ｒ２は、２つ以上の計量ホッパ５に供給されるべき物品の供給量に対応してもよい。例えば、図５（ａ）に示されるように、基準領域Ｒ２は、２つの計量ホッパ５に供給されるべき物品の供給量に対応してもよい。この場合、排出部１１又は作業者は、基準領域Ｒ２内の物品を中心線Ｘに沿って二分割し、得られた物品のそれぞれを別々の計量ホッパ５に投入する。また、図５（ｂ）に示されるように、複数の直線Ｙによって格子状に区切られた複数の領域のそれぞれが基準領域Ｒ２であってもよい。また、基準領域Ｒ２は、載置面２ａと物品の上部との間にわたって設定されなくてもよく、例えば物品の上部側のみに設定されてもよい。 In the above embodiment, the reference region R2 may have an arbitrary shape. For example, as shown in FIG. 5A, the reference region R2 may be circular when viewed from the vertical direction. Further, the reference region R <b> 2 may correspond to the supply amount of articles to be supplied to two or more weighing hoppers 5. For example, as shown in FIG. 5A, the reference region R2 may correspond to the supply amount of articles to be supplied to the two weighing hoppers 5. In this case, the discharge unit 11 or the operator divides the article in the reference region R2 into two along the center line X, and puts each of the obtained articles into separate weighing hoppers 5. Further, as shown in FIG. 5B, each of a plurality of regions divided in a lattice pattern by a plurality of straight lines Y may be a reference region R2. Further, the reference region R2 may not be set between the placement surface 2a and the upper part of the article, and may be set only on the upper side of the article, for example.
　上記実施形態において、目標供給量は、計量ホッパ５に対応付けられた計量値に基づいて設定されてもよい。例えば、一の計量ホッパ５に所定量の物品が貯留されている場合、当該計量ホッパ５に供給されるべき物品の供給量は、計量ホッパ５当たりの目標計量値から当該所定量を減算した値であってもよい。計量ホッパ５に対応付けられた計量値に基づいて目標供給量が設定される構成では、現在の計量ホッパ５の貯留量に応じた量の物品を計量ホッパ５に投入することが可能となる。目標供給量は、必ずしも目標計量値に基づいて設定されなくてよく、例えば計量ホッパ５の仕様に基づいて予め設定された固定値であってもよい。 In the above embodiment, the target supply amount may be set based on a measurement value associated with the measurement hopper 5. For example, when a predetermined amount of articles is stored in one weighing hopper 5, the supply amount of articles to be supplied to the weighing hopper 5 is a value obtained by subtracting the predetermined amount from the target measured value per weighing hopper 5. It may be. In the configuration in which the target supply amount is set based on the measurement value associated with the weighing hopper 5, it is possible to put an amount of articles corresponding to the current storage amount of the weighing hopper 5 into the weighing hopper 5. The target supply amount is not necessarily set based on the target measurement value, and may be a fixed value set in advance based on the specification of the measurement hopper 5, for example.
　上記実施形態において、排出部１１によって載置面２ａ上の清掃が行われてもよい。この場合、例えば手作業により清掃が行われる場合と比べて清掃に要する時間を短縮でき、ひいては段取り時間を短縮できる。上記実施形態において、滞留部２は、載置面２ａを有するものに限られず、任意の形状であってよい。例えば、滞留部２は、収容容器内に物品が堆積されるものであってもよい。上記実施形態において、組合せ計量装置１は、領域設定部２１として機能する演算装置を制御部２０とは別に備えてもよい。上記実施形態では検出部９と排出部１１とがロボット１２の一部として互いに一体に構成されたが、検出部９と排出部１１とは別体に構成されてもよい。上記実施形態において、検出部９によりフィーダ３の搬送量が検出されもよい。この場合、制御部２０は、検出部９により検出されたフィーダ３の搬送量が少ない場合にフィーダ３の送力（例えば搬送面３ａの振動における振幅）を増加させ、搬送量が多い場合にフィーダ３の送力を減少させてもよい。フィーダ３は必ずしも備えられなくてもよい。 In the above-described embodiment, cleaning on the mounting surface 2a may be performed by the discharge unit 11. In this case, for example, the time required for cleaning can be shortened compared with the case where cleaning is performed manually, and thus the setup time can be shortened. In the said embodiment, the retention part 2 is not restricted to what has the mounting surface 2a, You may be arbitrary shapes. For example, the staying part 2 may be one in which articles are deposited in the storage container. In the embodiment described above, the combination weighing device 1 may include an arithmetic device that functions as the region setting unit 21, separately from the control unit 20. In the above embodiment, the detection unit 9 and the discharge unit 11 are integrally formed as a part of the robot 12, but the detection unit 9 and the discharge unit 11 may be configured separately. In the above embodiment, the conveyance amount of the feeder 3 may be detected by the detection unit 9. In this case, the control unit 20 increases the feeding force of the feeder 3 (for example, amplitude in vibration of the conveyance surface 3a) when the conveyance amount of the feeder 3 detected by the detection unit 9 is small, and the feeder when the conveyance amount is large. The feeding force of 3 may be decreased. The feeder 3 is not necessarily provided.
　フィーダ３が備えられない場合、排出部１１は、領域設定部２１により設定される基準領域Ｒ２内の物品を移送し、当該物品の供給対象へ直接に排出してもよい。より詳細には、排出部１１は、基準領域Ｒ２内の物品をハンド部１１ｂによって把持し、ハンド部１１ｂをアーム１１ａによって移動させることで、当該物品をプールホッパ４へ直接に排出してもよい。この場合、計量ホッパ５への物品の供給を高速化することが可能となる。なお、フィーダ３及びプールホッパ４が備えられなくてもよく、この場合、排出部１１は、基準領域Ｒ２内の物品を計量ホッパ５へ直接に排出してもよい。すなわち、物品の供給対象は、プールホッパ４であってもよいし、計量ホッパ５であってもよい。フィーダ３及び／又はプールホッパ４が備えられない場合、基準領域Ｒ２内の物品が手作業により当該物品の供給対象へ直接に排出されてもよい。これらの場合にも、計量ホッパ５への物品の供給を高速化することが可能となる。 When the feeder 3 is not provided, the discharge unit 11 may transfer the article in the reference region R2 set by the region setting unit 21 and directly discharge it to the supply target of the article. More specifically, the discharge unit 11 may discharge the article directly to the pool hopper 4 by holding the article in the reference region R2 by the hand unit 11b and moving the hand unit 11b by the arm 11a. . In this case, it is possible to speed up the supply of articles to the weighing hopper 5. Note that the feeder 3 and the pool hopper 4 may not be provided, and in this case, the discharge unit 11 may discharge the articles in the reference region R2 directly to the weighing hopper 5. That is, the article supply target may be the pool hopper 4 or the weighing hopper 5. When the feeder 3 and / or the pool hopper 4 are not provided, the article in the reference region R2 may be directly discharged to the supply target of the article by manual work. Also in these cases, it is possible to speed up the supply of articles to the weighing hopper 5.
　上記実施形態は、組合せ計量システムについての実施形態とみなすこともできる。組合せ計量システムでは、組合せ計量装置１は、検出部９及び排出部１１を備えず、滞留部２と、複数のフィーダ３と、複数のプールホッパ４と、複数の計量ホッパ５と、一対のコンベア６と、シュート７と、計量部８と、制御部２０と、を備える。制御部２０と領域設定部２１とは別に構成される。組合せ計量システムは、そのような組合せ計量装置１と、検出部９と、領域設定部２１と、を備える。組合せ計量システムは、排出部１１を更に備えてもよい。組合せ計量システムでは、検出部９及び排出部１１はロボット１２として一体に構成されてよい。領域設定部２１は例えばロボット１２内に配置されてよい。このような組合せ計量システムによっても、上記実施形態と同様に、適切な量の物品を安定的に計量ホッパ５に投入することが可能となり、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 The above embodiment can also be regarded as an embodiment of a combination weighing system. In the combination weighing system, the combination weighing device 1 does not include the detection unit 9 and the discharge unit 11, and the staying unit 2, the plurality of feeders 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, and a pair of conveyors 6, a chute 7, a weighing unit 8, and a control unit 20. The control unit 20 and the region setting unit 21 are configured separately. The combination weighing system includes such a combination weighing device 1, a detection unit 9, and a region setting unit 21. The combination weighing system may further include a discharge unit 11. In the combination weighing system, the detection unit 9 and the discharge unit 11 may be integrally configured as a robot 12. The region setting unit 21 may be disposed in the robot 12, for example. Even with such a combination weighing system, as in the above embodiment, it is possible to stably put an appropriate amount of articles into the weighing hopper 5 and improve the weighing accuracy and the operation rate in combination weighing. .
　上記実施形態は、組合せ計量装置１と共に用いられる領域設定装置についての実施形態とみなすこともできる。この場合、組合せ計量装置１は、検出部９及び排出部１１を備えず、滞留部２と、複数のフィーダ３と、複数のプールホッパ４と、複数の計量ホッパ５と、一対のコンベア６と、シュート７と、計量部８と、制御部２０と、を備える。制御部２０と領域設定部２１とは別に構成される。領域設定装置は、検出部９と、領域設定部２１と、を備える。領域設定装置は、排出部１１を更に備えてもよい。検出部９及び排出部１１はロボット１２として一体に構成されてよい。領域設定部２１は例えばロボット１２内に配置されてよい。このような領域設定装置によっても、上記実施形態と同様に、適切な量の物品を安定的に計量ホッパ５に投入することが可能となり、組合せ計量における計量精度の向上及び稼働率の向上を図れる。 The above embodiment can be regarded as an embodiment of an area setting device used together with the combination weighing device 1. In this case, the combination weighing device 1 does not include the detection unit 9 and the discharge unit 11, and the staying unit 2, the plurality of feeders 3, the plurality of pool hoppers 4, the plurality of weighing hoppers 5, and the pair of conveyors 6 , A chute 7, a weighing unit 8, and a control unit 20. The control unit 20 and the region setting unit 21 are configured separately. The region setting device includes a detection unit 9 and a region setting unit 21. The area setting device may further include a discharge unit 11. The detection unit 9 and the discharge unit 11 may be integrally configured as a robot 12. The region setting unit 21 may be disposed in the robot 12, for example. Even with such a region setting device, it is possible to stably put an appropriate amount of articles into the weighing hopper 5 as in the above-described embodiment, and it is possible to improve the weighing accuracy and the operation rate in combination weighing. .
１…組合せ計量装置、２…滞留部、２ａ…載置面、５…計量ホッパ、８…計量部、９…検出部、１１…排出部、２０…制御部、２１…領域設定部、２２…投影部、２３…表示部、Ｒ１…滞留領域、Ｒ２…基準領域。 DESCRIPTION OF SYMBOLS 1 ... Combination measuring device, 2 ... Retaining part, 2a ... Mounting surface, 5 ... Measuring hopper, 8 ... Measuring part, 9 ... Detection part, 11 ... Discharge part, 20 ... Control part, 21 ... Area setting part, 22 ... Projection unit, 23 ... display unit, R1 ... staying region, R2 ... reference region.

Claims (11)

  1. 　物品を一時的に滞留させるための滞留領域を有する滞留部と、
    　前記滞留領域に滞留する前記物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、
    　前記ホッパに貯留された前記物品の質量に応じた計量値を出力する計量部と、
    　前記計量部によって計量され且つ複数の前記ホッパにそれぞれ対応付けられた複数の前記計量値から、合計値が目標計量値となるように前記計量値の組合せを選択し、当該組合せに対応する前記ホッパに前記物品を排出させる制御部と、
    　前記滞留領域に滞留する前記物品の滞留状態を検出する検出部と、
    　前記検出部により検出される前記滞留状態に基づいて、少なくとも１つの前記ホッパに供給されるべき前記物品の供給量に対応する基準領域を前記滞留領域内の前記物品に設定する領域設定部と、を備える組合せ計量装置。     A retention part having a retention region for temporarily retaining the article;
    A plurality of hoppers for receiving a part of the article staying in the staying area and temporarily storing the article;
    A weighing unit that outputs a weighing value according to the mass of the article stored in the hopper;
    The combination of the measurement values is selected from the plurality of measurement values measured by the measurement unit and respectively associated with the plurality of hoppers so that the total value becomes the target measurement value, and the hopper corresponding to the combination A control unit for discharging the article;
    A detection unit for detecting a staying state of the article staying in the staying region;
    Based on the staying state detected by the detection unit, a region setting unit that sets a reference region corresponding to the supply amount of the article to be supplied to at least one of the hoppers in the article in the staying region; A combination weighing device.
  2. 　前記供給量は、前記目標計量値に基づいて設定される、請求項１に記載の組合せ計量装置。 The combination weighing device according to claim 1, wherein the supply amount is set based on the target measurement value.
  3. 　前記供給量は、前記ホッパに対応付けられた前記計量値に基づいて設定される、請求項１又は２に記載の組合せ計量装置。 The combination weighing device according to claim 1 or 2, wherein the supply amount is set based on the measurement value associated with the hopper.
  4. 　前記領域設定部により設定される前記基準領域を前記滞留領域内の前記物品に投影する投影部を更に備える、請求項１～３のいずれか一項に記載の組合せ計量装置。 The combination weighing device according to any one of claims 1 to 3, further comprising a projection unit that projects the reference region set by the region setting unit onto the article in the staying region.
  5. 　前記領域設定部により設定される前記基準領域に関する情報を表示する表示部を更に備える、請求項１～４のいずれか一項に記載の組合せ計量装置。 The combination weighing device according to any one of claims 1 to 4, further comprising a display unit that displays information regarding the reference region set by the region setting unit.
  6. 　前記滞留部は、前記物品が載置される載置面を有し、
    　前記領域設定部は、前記基準領域を前記載置面上の前記物品に設定する、請求項１～５のいずれか一項に記載の組合せ計量装置。     The stay part has a placement surface on which the article is placed,
    The combination weighing device according to any one of claims 1 to 5, wherein the region setting unit sets the reference region to the article on the placement surface.
  7. 　前記領域設定部により設定される前記基準領域内の前記物品を、当該物品を供給すべき前記ホッパに供給されるように前記滞留部から排出する排出部を更に備える、請求項１～６のいずれか一項に記載の組合せ計量装置。 7. The apparatus according to claim 1, further comprising a discharge unit that discharges the article in the reference area set by the area setting unit from the staying part so as to be supplied to the hopper to which the article is to be supplied. A combination weighing device according to claim 1.
  8. 　前記排出部は、前記領域設定部により設定される前記基準領域内の前記物品を移送し、当該物品の供給対象へ直接に排出する、請求項７に記載の組合せ計量装置。 The combination weighing device according to claim 7, wherein the discharge unit transfers the article in the reference area set by the area setting unit and directly discharges the article to a supply target of the article.
  9. 　前記滞留領域に滞留する前記物品が手作業により前記ホッパに供給される、請求項１～８のいずれか一項に記載の組合せ計量装置。 The combination weighing device according to any one of claims 1 to 8, wherein the article staying in the staying area is manually supplied to the hopper.
  10. 　物品を一時的に滞留させるための滞留領域を有する滞留部と、前記滞留領域に滞留する前記物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、前記ホッパに貯留された前記物品の質量に応じた計量値を出力する計量部と、前記計量部によって計量され且つ複数の前記ホッパにそれぞれ対応付けられた複数の前記計量値から、合計値が目標計量値となるように前記計量値の組合せを選択し、当該組合せに対応する前記ホッパに前記物品を排出させる制御部と、を具備する組合せ計量装置と、
    　前記滞留領域に滞留する前記物品の滞留状態を検出する検出部と、
    　前記検出部により検出される前記滞留状態に基づいて、少なくとも１つの前記ホッパに供給されるべき前記物品の供給量に対応する基準領域を前記滞留領域内の前記物品に設定する領域設定部と、を備える組合せ計量システム。     A stagnation part having a stagnation area for temporarily retaining the article, a plurality of hoppers for receiving a part of the article that stagnates in the stagnation area, and temporarily storing the article, and stored in the hopper The total value becomes a target measurement value from a measurement unit that outputs a measurement value corresponding to the mass of the article and a plurality of measurement values that are measured by the measurement unit and are respectively associated with the plurality of hoppers. A combination weighing device comprising: a control unit that selects a combination of the measurement values and causes the hopper corresponding to the combination to discharge the article
    A detection unit for detecting a staying state of the article staying in the staying region;
    Based on the staying state detected by the detection unit, a region setting unit that sets a reference region corresponding to the supply amount of the article to be supplied to at least one of the hoppers in the article in the staying region; A combination weighing system.
  11. 　物品を一時的に滞留させるための滞留領域を有する滞留部と、前記滞留領域に滞留する前記物品の一部を受け取って、当該物品を一時的に貯留する複数のホッパと、前記ホッパに貯留された前記物品の質量に応じた計量値を出力する計量部と、前記計量部によって計量され且つ複数の前記ホッパにそれぞれ対応付けられた複数の前記計量値から、合計値が目標計量値となるように前記計量値の組合せを選択し、当該組合せに対応する前記ホッパに前記物品を排出させる制御部と、を備える組合せ計量装置と共に用いられる領域設定装置であって、
    　前記滞留領域に滞留する前記物品の滞留状態を検出する検出部と、
    　前記検出部により検出される前記滞留状態に基づいて、少なくとも１つの前記ホッパに供給されるべき前記物品の供給量に対応する基準領域を前記滞留領域内の前記物品に設定する領域設定部と、を備える領域設定装置。     A stagnation part having a stagnation area for temporarily retaining the article, a plurality of hoppers for receiving a part of the article that stagnates in the stagnation area, and temporarily storing the article, and stored in the hopper The total value becomes a target measurement value from a measurement unit that outputs a measurement value corresponding to the mass of the article and a plurality of measurement values that are measured by the measurement unit and are respectively associated with the plurality of hoppers. And a control unit that selects the combination of the measurement values and causes the hopper corresponding to the combination to discharge the article.
    A detection unit for detecting a staying state of the article staying in the staying region;
    Based on the staying state detected by the detection unit, a region setting unit that sets a reference region corresponding to the supply amount of the article to be supplied to at least one of the hoppers in the article in the staying region; An area setting device comprising:
PCT/JP2018/000674 2017-01-24 2018-01-12 Combination weighing device, combination weighing system, and area setting device WO2018139221A1 (en)

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