JP6810959B2 - Combination weighing device, combination weighing system, area setting device - Google Patents

Description

The present invention relates to a combination weighing device, a combination weighing system and a region setting device.

For example, the combination weighing device described in Patent Document 1 receives a retention portion having a retention region for temporarily retaining an article and a part of the article retained in the retention region, and temporarily stores the article. The hopper is provided with a plurality of hoppers, and a measuring unit that outputs a measured value according to the mass of the article stored in the hopper. In such a combination weighing device, a combination of weighing values is selected from a plurality of weighing values measured by the weighing unit and associated with each of the plurality of hoppers so that the total value becomes the target weighing value, and the combination is selected. A combinatorial weighing process is performed that causes the corresponding hopper to eject the article.

Utility Model Registration No. 3201299

In the combination weighing device as described above, a part of the articles staying in the staying region is manually put into the hopper. In such loading work, the amount of goods to be loaded into the hopper depends on the judgment of the worker and varies depending on the worker's proficiency in the work and the like. Therefore, for example, an amount of goods that greatly exceeds the supply amount that should be originally supplied may be put into the hopper. In this case, the measurement accuracy in the combination measurement is lowered. Further, in this case, the operating rate is lowered due to the 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 associated with each of the plurality of hoppers is not included in a predetermined range based on the target measurement value. In another case, it means that the measured value of one hopper exceeds a predetermined range based on the target measured value.

One aspect of the present invention is to provide a combination weighing device, a combination weighing system, and a region setting device capable of improving the weighing accuracy and the operating rate in the combination weighing.

The combination weighing device according to one aspect of the present invention receives a retention portion having a retention region for temporarily retaining an article and a part of the article retained in the retention region, and temporarily stores the article. The total value is the target from a plurality of hoppers, a measuring unit that outputs a measured value according to the mass of the article stored in the hopper, and a plurality of measured values measured by the measuring unit and associated with each of the plurality of hoppers. It is detected by a control unit that selects a combination of measurement values so as to be a measurement value and discharges the article to the hopper corresponding to the combination, a detection unit that detects the retention state of the article staying in the retention area, and a detection unit. A region setting unit for setting a reference region corresponding to the supply amount of the article to be supplied to at least one hopper to the article in the retention region based on the retention state is provided.

In this combination weighing device, a reference region corresponding to the supply amount of the article to be supplied to at least one hopper is set for the article in the retention region based on the retention state of the article staying in the retention region. As a result, for example, the set reference area is projected onto the article in the retention area, or the information about the set reference area is displayed on the display unit so that the operator can recognize the reference area and within the reference area. By loading the existing articles into the hopper, it is possible to stably load an appropriate amount of articles into the hopper. Therefore, in this combination weighing device, it is possible to improve the weighing accuracy and the operating rate in the combination weighing.

In one embodiment, the supply may be set based on the target weighing value. With this configuration, it is possible to put an amount of articles corresponding to the target measurement value related to the combination measurement into the hopper.

In one embodiment, the supply amount may be set based on the measured value associated with the hopper. With this configuration, it is possible to put an amount of articles into the hopper according to the current storage amount of the hopper.

In one embodiment, a projection unit that projects a reference region set by the region setting unit onto an article in the retention region may be further provided. With this configuration, it is possible for the operator to easily recognize the reference area.

In one embodiment, a display unit that displays information about a reference area set by the area setting unit may be further provided. With this configuration, it is possible for the operator to easily recognize the reference area.

In one embodiment, the retention section may have a mounting surface on which the article is placed, and the area setting section may set the reference region on the article on the mounting surface. With this configuration, it is possible to facilitate the detection of the stagnant state of the article and to facilitate the discharge of the article from the stagnant portion.

In one embodiment, an discharge unit for discharging the article in the reference region set by the area setting unit from the retention unit so as to be supplied to the hopper to which the article should be supplied may be further provided. With this configuration, it is possible to more stably put an appropriate amount of articles into the hopper.

In one embodiment, the 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 operating rate in the combination weighing.

The combination weighing system according to one aspect of the present invention receives a retention portion having a retention region for temporarily retaining an article and a part of the article retained in the retention region, and temporarily stores the article. The total value is the target from a plurality of hoppers, a measuring unit that outputs a measured value according to the mass of the article stored in the hopper, and a plurality of measured values measured by the measuring unit and associated with each of the plurality of hoppers. A combination weighing device including a control unit that selects a combination of measured values so as to be a measured value and discharges the article to a hopper corresponding to the combination, and detection for detecting the retention state of the article staying in the retention region. A unit and 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 to the article in the retention area based on the retention state detected by the detection unit.

In this combination weighing system, a reference region corresponding to the supply amount of the article to be supplied to at least one hopper is set for the article in the retention region based on the retention state of the article staying in the retention region. As a result, for example, the set reference area is projected onto the article in the retention area, or the information about the set reference area is displayed on the display unit so that the operator can recognize the reference area and within the reference area. By loading the existing articles into the hopper, it is possible to stably load an appropriate amount of articles into the hopper. Therefore, in this combination weighing system, it is possible to improve the weighing accuracy and the operating rate in the combination weighing.

The area setting device according to one aspect of the present invention receives a retention portion having a retention region for temporarily retaining an article and a part of the article retained in the retention region, and temporarily stores the article. The total value is the target from a plurality of hoppers, a measuring unit that outputs a measured value according to the mass of the article stored in the hopper, and a plurality of measured values measured by the measuring unit and associated with each of the plurality of hoppers. An area setting device used together with a combination measuring device including a control unit that selects a combination of measurement values so as to be a measurement value and discharges an article to a hopper corresponding to the combination, and is an article that stays in a retention area. An area for setting a reference region corresponding to the supply amount of the article to be supplied to at least one hopper to the article in the retention area based on the detection unit for detecting the retention state of the device and the retention state detected by the detection unit. It has a setting unit.

In this area setting device, a reference region corresponding to the supply amount of the article to be supplied to at least one hopper is set for the article in the retention region based on the retention state of the article staying in the retention region. As a result, for example, the set reference area is projected onto the article in the retention area, or the information about the set reference area is displayed on the display unit so that the operator can recognize the reference area and within the reference area. By loading the existing articles into the hopper, it is possible to stably load an appropriate amount of articles into the hopper. Therefore, in this area setting device, it is possible to improve the measurement accuracy and the operating rate in the combination measurement.

According to one aspect of the present invention, it is possible to improve the weighing accuracy and the operating rate in the combination weighing.

It is a perspective view of the combination weighing apparatus which concerns on one Embodiment of this invention. It is a block diagram of the combination weighing apparatus of FIG. It is a top view which shows the example of the reference area set for the article in the retention area. It is a block diagram of the combination weighing apparatus which concerns on a modification. (A) and (b) are plan views showing other examples of the reference region.

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 are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIGS. 1 and 2, the combination weighing device 1 includes a retention 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 are provided. The combination weighing device 1 weighs articles supplied from the outside (articles having variations in the mass of individual substances such as agricultural products, marine products, processed foods, etc.) so as to have a target weighing value, and supplies the articles to, for example, a bag making and packaging machine. To do. The bag-making and packaging machine forms the film into a bag having a predetermined capacity, and packs the articles weighed and supplied by the combination weighing device 1.

The retention portion 2 is arranged below, for example, the transport end of a conveyor (not shown) that transports articles. The retention portion 2 has, for example, a flat mounting surface 2a. As shown in FIG. 3, the shape of the mounting surface 2a is, for example, a rectangle. Articles that have fallen from the transport end of the conveyor are received by the mounting surface 2a and placed on the mounting surface 2a. The article placed on the mounting surface 2a is discharged to the feeder 3 by the discharge unit 11. That is, the region on the mounting surface 2a is a retention region R1 for temporarily retaining the article. The mounting surface 2a is provided with a plurality of discharge ports 2b corresponding to the plurality of feeders 3. The discharge ports 2b are located on one end side (front side) of the mounting surface 2a in the lateral direction, and are provided side by side in a row along the longitudinal direction of the mounting surface 2a. The article placed on the mounting surface 2a is discharged from the discharge port 2b to the feeder 3. The retention portion 2 may be configured so that the mounting surface 2a can be vibrated so that the articles on the mounting surface 2a can be leveled.

The plurality of feeders 3 are arranged side by side in a row below the retention portion 2. Half of the plurality of feeders 3 are 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 are arranged on the other side in the horizontal direction with respect to the center line CL. Be placed. Each feeder 3 has a transport surface 3a that is inclined with respect to the horizontal direction. Articles discharged from the discharge port 2b of the retention portion 2 are supplied to the upper end side of the transport surface 3a of each feeder 3. Each feeder 3 vibrates the transport surface 3a to transport the article toward the pool hopper 4.

The plurality of pool hoppers 4 are arranged side by side in a row below the plurality of feeders 3. Each pool hopper 4 is arranged below the lower end of the transport surface 3a of each feeder 3. Each pool hopper 4 has a gate 4a that can be opened and closed relative to its bottom. By closing the gate 4a, each pool hopper 4 receives the article discharged from the lower end of the corresponding feeder 3 and temporarily stores the article. 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 row below the plurality of pool hoppers 4. Each weighing hopper 5 is arranged below the gate 4a of each pool hopper 4. Each weighing hopper 5 has a gate 5a that can be opened and closed with respect to its bottom. By closing the gate 5a, each weighing hopper 5 receives the article discharged from the corresponding pool hopper 4 and temporarily stores the article. Further, each weighing hopper 5 discharges the temporarily stored article downward by opening the gate 5a.

The pair of conveyors 6 are arranged horizontally side by side below the plurality of measuring hoppers 5. One of the pair of conveyors 6 extends horizontally below half of the plurality of weighing hoppers 5 arranged 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 horizontally below the other half of the plurality of weighing hoppers 5 and receives the articles discharged from those weighing hoppers 5 and conveys them towards the chute 7.

The chute 7 is arranged below the pair of conveyors 6 so as to be located between the pair of conveyors 6 when viewed in the vertical direction. The chute 7 is, for example, a quadrangular pyramid-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 bag-making and packaging machine described above.

The measuring unit 8 is arranged in the frame 13. The measuring 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 form a part of the robot 12. The robot 12 may be integrally configured with the frame 13, or may be configured separately from the frame 13 and arranged in the vicinity of the frame 13. The detection unit 9 is provided above the main body unit 12a of the robot 12.

The detection unit 9 detects the retention state of the article staying in the retention region R1. The detection unit 9 is, for example, an infrared sensor that detects an area where an article exists in the retention area R1. The region where the article exists is a region in the three-dimensional space, and includes the range where the article exists when viewed from the vertical direction and the height of the article in the range. The height of the article is the distance between the mounting 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 retention state of the article staying in the retention region R1. For example, the detection unit 9 may be a camera that captures the retention region R1 from above.

The discharge unit 11 discharges a part of the article staying in the retention region R1 from the discharge port 2b to the feeder 3. The discharge portion 11 is, for example, a manipulator having a pair of arms 11a extending from an intermediate portion of the main body portion 12a and a hand portion 11b provided at the tip end portion of each arm 11a. Each arm 11a is, for example, an articulated arm. The hand portion 11b is used to grip a part of the article placed on the mounting surface 2a. Details of the discharge of the article by the discharge unit 11 will be described later. The discharge unit 11 may have at least one arm 11a, and may have, for example, four 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 combines the vibration operation of the retention unit 2, the transfer operation of the feeder 3, the opening / closing operation of the gate 4a of each pool hopper 4, the opening / closing operation of the gate 5a of each measuring hopper 5, the transfer operation of each conveyor 6, and the like. It controls the operation of each part of the weighing device 1. The control unit 20 is communicably connected to the bag making and packaging machine. The retention portion 2, the feeder 3, the plurality of pool hoppers 4, the plurality of measuring hoppers 5, the pair of conveyors 6, and the chute 7 are directly or indirectly supported by the frame 13.

The control unit 20 executes the combination weighing process. In the combination weighing process, the control unit 20 stores the measured value measured by the measuring unit 8 and the measuring hopper 5 for storing the article corresponding to the measured value in association with each other. The control unit 20 selects a combination of measurement values from a plurality of measurement values measured by the measurement unit 8 and associated with each measurement hopper 5 so that the total value becomes the target measurement value. 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 with the target measurement value as the lower limit value. Then, the control unit 20 causes the measuring hopper 5 corresponding to the combination to discharge the article.

Further, the control unit 20 supplies the article to be supplied to at least one measuring hopper 5 based on the retention state of the article in the retention region R1 detected by the detection unit 9 (hereinafter, also referred to as a target supply amount). It also functions as a region setting unit 21 that sets the reference region R2 corresponding to the above to the article in the retention region R1. The reference region R2 is set, for example, as shown in FIG. Hereinafter, the reference region R2 will be described with reference to FIG. In FIG. 3, the range in which the article exists in the retention region R1 is indicated by reference numeral A.

The reference region R2 is an region in the three-dimensional space. In the example of FIG. 3, the reference region R2 has a uniform shape in the vertical direction between the mounting surface 2a and the upper part of the article. The shape of the reference region R2 when viewed from the vertical direction is square. 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 arrangements of the arms 11a of the discharge unit 11 are set.

In the example of FIG. 3, the target supply amount is the supply amount of the article to be supplied to one empty measuring hopper 5 (which does not store the article). The target supply amount is set based on, for example, 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 measurement hoppers 5 combined in the combination measurement process (target measurement value per measurement hopper 5). When the density of articles can be considered to be substantially constant, the target supply amount is a value obtained by dividing the target measurement value per measuring hopper 5 by the density. The amount of article present in the reference region R2 substantially coincides with the target supply amount. The amount of article in the reference area R2 depends on the height of the article in the reference area R2. Therefore, the areas of the plurality of reference regions R2 may be different from each other when viewed from the vertical direction.

The article in the reference region R2 is discharged from the retention section 2 by the discharge section 11 so as to be supplied to the measuring hopper 5 to which the article should 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 to move the article to the discharge port 2b corresponding to the empty weighing hopper 5. Discharge to. As a result, the article in the reference region R2 is supplied to the empty weighing hopper 5. The discharge unit 11 may use the pair of arms 11a to discharge the articles in the two reference regions R2 to the discharge ports 2b in parallel.

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 measuring hopper 5 based on the retention state of the articles staying in the retention region R1. Region R2 is set on the article in retention zone R1. As a result, for example, by charging the articles in the reference region R2 into the measuring hopper 5 by the discharge unit 11 as described above, an appropriate amount of articles can be stably charged into the measuring hopper 5. Therefore, in the combination weighing device 1, the measurement accuracy in the combination weighing can be improved. Further, in the combination weighing device 1, since the occurrence of overscale or the like can be suppressed, the operating rate can be improved. Further, since the article is stably put into the measuring hopper 5, the number of arranged measuring hoppers 5 can be reduced and the device can be miniaturized.

Further, in the combination weighing device 1, the target supply amount is set based on the target weighing value. As a result, it is possible to put an amount of articles corresponding to the target measurement value related to the combination measurement into the measurement hopper 5.

Further, in the combination weighing device 1, the staying portion 2 has a mounting surface 2a on which the article is placed, and the area setting section 21 sets the reference region R2 on the article on the mounting surface 2a. As a result, it is possible to facilitate the detection of the stagnant state of the article and to facilitate the discharge of the article from the stagnant portion 2.

Further, the combination weighing device 1 includes a discharge unit 11 that discharges the articles in the reference region R2 set by the area setting unit 21 from the retention unit 2 so as to be supplied to the measuring hopper 5 to which the articles should be supplied. .. This makes it possible to more stably put an appropriate amount of articles into the weighing hopper 5. Further, compared to the case where the article is manually discharged, labor saving can be achieved and hygiene can be improved. Further, since the plurality of measuring hoppers 5 are used evenly, it is possible to prevent the measuring hopper 5 from being left empty, and it is possible to improve the operating rate.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the discharge unit 11 may not be provided as in the modified example shown in FIG. In this case, the operator manually discharges the article in the reference region R2 from the discharge port 2b. In the modified example, 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 retention region R1. The projection unit 22 is, for example, a projector that projects the reference region R2 identifiablely from a portion other than the reference region R2. The projection unit 22 may, for example, project the boundary line of the reference region R2, or may project the image on the entire reference region R2. For example, the projection unit 22 is provided on the upper portion of the main body unit 12a of the robot 12 so as to be adjacent to the detection unit 9, and projects an output image from above toward an article in the reference region R2. Even in such a modification, by projecting the reference region R2 onto the article in the retention region R1, the operator is made to recognize the reference region R2, and the article in the reference region R2 is put into the measuring hopper 5. It becomes possible to stably put an appropriate amount of articles into the weighing hopper 5. As a result, it is possible to improve the weighing accuracy and the operating rate in the combination weighing.

Further, in the modified example, the combination weighing device 1 includes a display unit 23 that displays information about the reference area R2 set by the area setting unit 21. The display unit 23 is, for example, a display in which an image corresponding to a reference region R2 is superimposed on an image corresponding to a retention region R1 and displayed on a display surface. The display unit 23 is fixed to the frame 13 so that the operator can see it, for example. Even with this configuration, by displaying the information about the reference area R2 on the display unit 23, the operator is made to recognize the reference area R2, and the articles in the reference area R2 are put into the measuring 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 weighing accuracy and the operating rate in the combination weighing. The combination weighing device 1 may include only one of the projection unit 22 and the display unit 23. Further, when the discharge of the article by the discharge unit 11 and the manual discharge of the article are used together, at least one of the projection unit 22 and the display unit 23 may be provided in addition to the discharge unit 11.

In the above embodiment, the reference region R2 may have any shape. For example, as shown in FIG. 5A, the reference region R2 may have a circular shape when viewed from the vertical direction. Further, the reference region R2 may correspond to the supply amount of the article to be supplied to the two or more measuring hoppers 5. For example, as shown in FIG. 5A, the reference region R2 may correspond to the supply of articles to be supplied to the two weighing hoppers 5. In this case, the discharge unit 11 or the operator divides the articles 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 the plurality of regions divided in a grid pattern by the plurality of straight lines Y may be the reference region R2. Further, the reference region R2 may not be set between the mounting surface 2a and the upper part of the article, and may be set only on the upper side of the article, for example.

In the above embodiment, the target supply amount may be set based on the measurement value associated with the measurement hopper 5. For example, when a predetermined amount of articles is stored in one measuring hopper 5, the supply amount of articles to be supplied to the measuring hopper 5 is a value obtained by subtracting the predetermined amount from the target weighing value per measuring hopper 5. It may be. In the configuration in which the target supply amount is set based on the measurement value associated with the measurement hopper 5, it is possible to put an amount of articles corresponding to the current storage amount of the measurement hopper 5 into the measurement hopper 5. Further, the target supply amount does not necessarily have to be set based on the target measurement value, and may be a fixed value preset based on the specifications of the measurement hopper 5, for example.

In the above embodiment, the discharge unit 11 may clean the mounting surface 2a. In this case, the time required for cleaning can be shortened as compared with the case where cleaning is performed manually, for example, and the setup time can be shortened. In the above embodiment, the retention portion 2 is not limited to the one having the mounting surface 2a, and may have any shape. For example, the retention portion 2 may be one in which articles are deposited in the storage container. In the above embodiment, the combination weighing device 1 may include an arithmetic unit that functions as the area setting unit 21 separately from the control unit 20. In the above embodiment, the detection unit 9 and the discharge unit 11 are integrally configured as a part of the robot 12, but the detection unit 9 and the discharge unit 11 may be separately configured. In the above embodiment, the transport amount of the feeder 3 may be detected by the detection unit 9. In this case, the control unit 20 increases the feed force of the feeder 3 (for example, the amplitude in the vibration of the transport surface 3a) when the transport amount of the feeder 3 detected by the detection unit 9 is small, and the feeder when the transport amount is large. The feed force of 3 may be reduced. The feeder 3 does not necessarily have to be provided.

The above embodiment can also be regarded as an embodiment for 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 includes a retention unit 2, a plurality of feeders 3, a plurality of pool hoppers 4, a plurality of weighing hoppers 5, and a pair of conveyors. 6, a chute 7, a measuring unit 8, and a control unit 20 are provided. The control unit 20 and the area setting unit 21 are separately configured. The combination weighing system includes such a combination weighing device 1, a detection unit 9, and an area 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 the robot 12. The area setting unit 21 may be arranged in the robot 12, for example. With such a combination weighing system, as in the above embodiment, it is possible to stably load an appropriate amount of articles into the weighing hopper 5, and it is possible to improve the weighing accuracy and the operating rate in the combination weighing. ..

The above-described embodiment can also be regarded as an embodiment of the region setting device used together with the combination weighing device 1. In this case, the combination weighing device 1 does not include the detecting unit 9 and the discharging unit 11, and includes a retaining unit 2, a plurality of feeders 3, a plurality of pool hoppers 4, a plurality of measuring hoppers 5, and a pair of conveyors 6. , A chute 7, a measuring unit 8, and a control unit 20. The control unit 20 and the area setting unit 21 are separately configured. The area setting device includes a detection unit 9 and an area 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 the robot 12. The area setting unit 21 may be arranged in the robot 12, for example. With such an area setting device, as in the above embodiment, it is possible to stably load an appropriate amount of articles into the weighing hopper 5, and it is possible to improve the weighing accuracy and the operating rate in the combination weighing. ..

1 ... Combination measuring device, 2 ... Retaining part, 2a ... Mounting surface, 5 ... Measuring hopper, 8 ... Measuring part, 9 ... Detection part, 11 ... Discharge part, 20 ... Control unit, 21 ... Area setting unit, 22 ... Projection unit, 23 ... Display unit, R1 ... Retention area, R2 ... Reference area.

Claims (9)

A retention portion having a retention area for temporarily retaining the article,
A plurality of hoppers that receive a part of the article that stays in the retention area and temporarily store the article.
A measuring unit that outputs a measured value according to the mass of the article stored in the hopper, and a measuring unit.
From the plurality of measurement values measured by the measurement unit and associated with the plurality of hoppers, a combination of the measurement values is selected so that the total value becomes the target measurement value, and the hopper corresponding to the combination is selected. With a control unit that discharges the article
A detection unit that detects the retention state of the article that stays in the retention region,
A region setting unit that sets a reference region corresponding to a supply amount of the article to be supplied to at least one hopper to the article in the retention region based on the retention state detected by the detection unit. equipped with a,
A combination weighing device in which the supply amount is set based on the target weighing value . The combination weighing device according to claim 1, wherein the supply amount is set based on the weighing value associated with the hopper. The combination weighing device according to claim 1 or 2 , further comprising a projection unit that projects the reference region set by the region setting unit onto the article in the retention region. The combination weighing device according to any one of claims 1 to 3 , further comprising a display unit for displaying information about the reference area set by the area setting unit. The retention portion has a mounting surface on which the article is placed.
The combination weighing device according to any one of claims 1 to 4 , wherein the area setting unit sets the reference area on the article on the above-mentioned mounting surface. Any of claims 1 to 5 , further comprising a discharge unit that discharges the article in the reference region set by the area setting unit from the retention unit so as to be supplied to the hopper to which the article should be supplied. The combination weighing device according to claim 1. The combination weighing device according to claim 3 or 4 , wherein the article staying in the staying region is manually supplied to the hopper. A retention portion having a retention area for temporarily retaining an article, a plurality of hoppers that receive a part of the article retained in the retention area and temporarily store the article, and a plurality of hoppers that are stored in the hopper. The total value is set as the target weighing value from the measuring unit that outputs the weighing value according to the mass of the article and the plurality of measuring values that are measured by the measuring unit and associated with the plurality of hoppers. A combination weighing device including a control unit for selecting a combination of the weighing values and discharging the article to the hopper corresponding to the combination.
A detection unit that detects the retention state of the article that stays in the retention region,
A region setting unit that sets a reference region corresponding to a supply amount of the article to be supplied to at least one hopper to the article in the retention region based on the retention state detected by the detection unit. equipped with a,
A combination weighing system in which the supply amount is set based on the target weighing value . A retention portion having a retention area for temporarily retaining an article, a plurality of hoppers that receive a part of the article retained in the retention area and temporarily store the article, and a plurality of hoppers that are stored in the hopper. The total value is set as the target weighing value from the measuring unit that outputs the weighing value according to the mass of the article and the plurality of measuring values that are measured by the measuring unit and associated with the plurality of hoppers. A region setting device used together with a combination weighing device including a control unit for selecting a combination of the weighing values and discharging the article to the hopper corresponding to the combination.
A detection unit that detects the retention state of the article that stays in the retention region,
A region setting unit that sets a reference region corresponding to a supply amount of the article to be supplied to at least one hopper to the article in the retention region based on the retention state detected by the detection unit. equipped with a,
The area setting device in which the supply amount is set based on the target measurement value .

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