Weight measuring device and weight sorting device

Abstract

To provide a weight measuring device and a weight selecting device that are to determine if a metering device conforms to a technical standard of a structure or an instrumental error defined in the measurement law as a specific meter, and can prevent a metering device not passing an examination from being used by mistake.SOLUTION: A weight measuring device comprises: a plurality of metering devices 12 that measure the weight of a plurality of articles conveyed separately and independently; and a control unit 21 that controls the plurality of metering devices 12. The control unit 21 causes a display to display, for every metering device, unit icons 32 representing identification information for identifying the metering device and an examination state as to whether the metering device has passed an examination, for determining if the metering device conforms to a technical standard of a structure or an instrumental error defined in the measurement law as a specific meter.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a weight measuring device and a weight sorting device. [Background technology]

[0002] For example, Patent Document 1 proposes a conventional weight measuring device that includes a plurality of conveying means for conveying supplied items belonging to the same lot, a plurality of inspection means provided on each conveying means for inspecting the items, a plurality of sorting means provided on each conveying means for selectively setting the conveying means to a passing position where the items are supplied to a subsequent process, a waiting position where the items are evacuated, or a rejection position where the items are rejected, and a control means for controlling the sorting means so that, based on the inspection results of the items by each inspection means, if the items conveyed by all conveying means are judged to be acceptable, all of the sorting means are set to the passing position, and if the items conveyed by at least one conveying means are judged to be unacceptable, the sorting means of that conveying means is set to the rejection position and the other sorting means are set to the waiting position, and the mass of the items is inspected using a weighing device provided on each conveying means. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5711011 Summary of the Invention [Problem to be solved by the invention]

[0004] When such a weight measuring device is used for transactions or certification of the measured mass, it must pass inspection to determine whether it complies with the technical standards for structure or instrument error stipulated in the Measurement Act as a specified measuring instrument.

[0005] However, if a weight measuring device has multiple weighing devices and each weighing device can be individually inspected, there is a possibility that inspected weighing devices and uninspected weighing devices may be mixed together. In this case, there is a risk that the uninspected weighing devices may be used by mistake.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a weight measuring device and a weight sorting device that can prevent the erroneous use of weighing devices that have not passed the inspection to determine whether they comply with the technical standards for structure or instrument error stipulated in the Weights and Measures Act as specified measuring instruments. [Means for solving the problem]

[0007] The weight measuring device of the present invention comprises a plurality of weighing devices (12) for measuring the weight of a plurality of articles that have been transported separately and independently, a control unit (21) for controlling the plurality of weighing devices, and a display device (22), and the control unit controls each of the weighing devices. By numbers Identifying information Image (32a) and, Identified by the identification information image Whether each of the above-mentioned measuring devices has passed the inspection to determine whether it conforms to the technical standards for structure or instrument error stipulated in the Measurement Act as a specified measuring instrument is expressed by the display mode Testing Status Image (32b) and, formed by icon (32) for each of the weighing devices Lined up The display device is configured to display the information.

[0008] With this configuration, the weight measuring device of the present invention can measure each weighing device. By numbers Identifying information image and, Identified by identification information image Whether each weighing device has passed inspection is expressed by the display mode Testing Status image and formed by Icons for each weighing device Lined upBy displaying this on a display device, it is possible to identify measuring devices that have not passed inspection, thereby preventing the mistaken use of measuring devices that have not passed inspection to determine whether they comply with the technical standards for structure or instrument error stipulated in the Weights and Measures Act as specified measuring instruments.

[0009] In the weight measuring device of the present invention, Identification information image further determines whether each of the measuring devices is valid or invalid. Depending on the display mode It may be possible to represent it as follows.

[0010] With this configuration, the weight measuring device of the present invention is Identification information image This allows each weighing device to be checked to see if it is valid or invalid.

[0011] In the weight measuring device of the present invention, the position of the icon may be changeable in the display area of ​​the display device.

[0012] With this configuration, the weight measuring device of the present invention can customize the layout of icons according to the user's usage style.

[0013] A weight sorting device of the present invention includes the weight measuring device described above, and is configured to sort articles whose weights have been measured by the weight measuring device in accordance with the measurement results of the weight measuring device.

[0014] With this configuration, the weight checker of the present invention can check each weighing device By numbers Identifying information image and, Identified by identification information image Whether each weighing device has passed inspection is expressed by the display mode Testing Status image and formed by Icons for each weighing device Lined up By displaying this on a display device, it is possible to identify measuring devices that have not passed inspection, thereby preventing the mistaken use of measuring devices that have not passed inspection to determine whether they comply with the technical standards for structure or instrument error stipulated in the Weights and Measures Act as specified measuring instruments. [Effects of the Invention]

[0015] The present invention can provide a weight measuring device and a weight sorting device that can prevent the erroneous use of weighing devices that have not passed inspection to determine whether they comply with the technical standards for structure or instrument error stipulated in the Weights and Measures Act as specified measuring instruments. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a side view of a weight sorting device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view of the weight sorting device according to the embodiment of the present invention. [Figure 3] FIG. 3 is a front view of the weight sorting device according to the embodiment of the present invention. [Figure 4] FIG. 4 is a control block diagram of the weight sorting device according to the embodiment of the present invention. [Figure 5] FIG. 5 is a diagram showing an example of a monitor screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 6] FIG. 6 is a diagram showing a first display example of a sealing information screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing a second display example of the sealing information screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing an example of a seal setting screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 9] FIG. 9 is a diagram showing an example of an all-line seal setting screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 10] FIG. 10 is a diagram showing an example of an individual line sealing setting screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 11]FIG. 11 is a diagram showing an example of a line selection screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. [Figure 12] FIG. 12 is a diagram showing an example of a main body conveyor speed upper limit registration screen displayed on the display device of the weight sorting device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an example in which a weight measuring device according to the present invention is applied to a weight sorting device will be described.

[0018] As shown in Fig. 1, the weight sorting device 1 has a support table 2, a conveying device 3 provided on the upper part of the support table 2, and a cover 5 that opens in the conveying direction of the conveying device 3 and covers the top and sides of the conveying device 3. In Fig. 1, the weight sorting device 1 is shown with the side surface of the cover 5 on the front side removed.

[0019] 2, the conveying device 3 has a plurality of conveying units 4a to 4f arranged in parallel in the conveying direction. In FIG. 2, the weight sorting device 1 is shown in a state where the cover 5 is removed.

[0020] In this embodiment, the weight sorting device 1 is described as being provided with six transport units, but the weight sorting device of the present invention may be provided with two or more transport units. Hereinafter, the transport units 4a to 4f will also be collectively referred to as "transport unit 4."

[0021] The conveying unit 4 has an inlet section 10a that receives and stabilizes the behavior of articles supplied from a filling machine (not shown) installed outside the weight sorting device 1, a measuring section 10b that measures the weight of the articles conveyed from the inlet section 10a, and a sorting section 10c that sorts the articles conveyed from the measuring section 10b. The inlet section 10a, the measuring section 10b, and the sorting section 10c are each composed of a belt conveyor that conveys articles on a belt.

[0022] 1, the transport unit 4 has motors 11a to 11c that drive the belt conveyors that make up the approach section 10a, the measuring section 10b, and the sorting section 10c, respectively. The transport unit 4 is provided with a weighing device 12 that measures the weight of the article being transported by the measuring section 10b.

[0023] In this embodiment, the weighing device 12 is configured as an electromagnetic balance scale. The weighing device 12 outputs a weight measurement signal according to the measurement result. However, the weighing device 12 may also be configured as an electric resistance wire scale.

[0024] The sorting section 10c is arranged so that it can swing between a horizontal state (position indicated by reference symbol 13a in the figure) and a downwardly inclined state (position indicated by reference symbol 13b in the figure) around the end on the measuring section 10b side.

[0025] 3, the sorting unit 10c is provided with an actuator 14 that swings the sorting unit 10c. The actuator 14 switches the state of the sorting unit 10c between a horizontal state and a downwardly inclined state.

[0026] 1 and 3, a sensor 15 for detecting an article being conveyed from the approach section 10a to the measurement section 10b is provided on the inner surface of the cover 5 above the area between the approach section 10a and the measurement section 10b.

[0027] 4, the weight sorting device 1 has control boards 20a to 20f provided in the transport units 4a to 4f, and a control unit 21 that controls the control boards 20a to 20f. Hereinafter, the control boards 20a to 20f will also be collectively referred to as "control board 20."

[0028] The control board 20 has, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory, registered trademark), an input / output port, and a communication port. The CPU of the control board 20 functions by executing a program stored in the ROM or EEPROM.

[0029] The motors 11a to 11c, the weighing device 12, the actuator 14, and the sensor 15 are connected to the input / output ports of the control board 20. Note that, although Fig. 4 shows that the motors 11a to 11c, the weighing device 12, the actuator 14, and the sensor 15 are connected to the input / output ports of the control board 20a, the corresponding motors 11a to 11c, the weighing device 12, the actuator 14, and the sensor 15 are also connected to the input / output ports of the control boards 20b to 20f in the same way as the input / output ports of the control board 20a.

[0030] The control board 20 controls the actuator 14 to switch the destination of the item depending on whether the weight of the item being transported by the measurement unit 10b is within a specified range. Specifically, when a set time has elapsed since the item was detected by the sensor 15, the control board 20 determines whether the weight of the item being transported by the measurement unit 10b is within a specified range based on weight data corresponding to the weight measurement signal output from the weighing device 12.

[0031] The EEPROM of the control board 20 stores line parameters related to the weighing device 12, such as the weighing section speed coefficient relative to the conveying speed of the measurement section 10b and sensitivity calibration data of the weighing device 12. The control board 20 determines the set time based on the line parameters stored in the EEPROM.

[0032] When the control board 20 determines that the weight of the item being transported by the measuring section 10b is within a specified range, it controls the actuator 14 to bring the sorting section 10c of the corresponding transport unit 4 into a horizontal position.

[0033] When the control board 20 determines that the weight of the item being transported by the measuring section 10b is not within the specified range, it controls the actuator 14 to tilt the sorting section 10c of the corresponding transport unit 4 downward.

[0034] As a result, articles whose weight is within the specified range are transported horizontally from sorting unit 10c, and articles whose weight is outside the specified range are transported downward from sorting unit 10c. Note that control board 20 may also control actuator 14 so that articles whose weight is within the specified range are transported downward from sorting unit 10c, and articles whose weight is outside the specified range are transported horizontally from sorting unit 10c.

[0035] The control unit 21 is configured by, for example, a computer unit having a CPU, ROM, RAM, a hard disk drive, an input / output port, and a communication port. The ROM and hard disk drive of this computer unit store a program for causing the computer unit to function as the control unit 21.

[0036] That is, the CPU loads the programs stored in the ROM and the hard disk drive into the RAM and executes the programs loaded into the RAM, whereby the computer unit functions as the control unit 21.

[0037] A display device 22 and an input device 23 are connected to the input / output ports of the control unit 21. In this embodiment, the display device 22 and the input device 23 are integrated into one unit by a touch panel unit 24. In this embodiment, the touch panel unit 24 is provided on the upper surface of the cover 5 (see FIG. 1).

[0038] The control unit 21 and each control board 20 are connected via a communication port. The control unit 21 controls each control board 20 via the communication port. For example, the control unit 21 can calibrate the sensitivity of the weighing devices 12 connected to each control board 20 collectively or individually.

[0039] The hard disk drive of the control unit 21 stores device parameters including usage range parameters related to the usage range such as the upper and lower limits of the usage weighing range and the upper limit of the main body conveyor speed, display parameters related to mass display such as the scale interval and decimal point position, zero set parameters related to zero setting such as the auto zero set range, and measurement parameters common to each conveying unit 4 related to the weighing device 12 such as the conveyor length of the measuring section 10b.

[0040] The hard disk drive of the control unit 21 also stores the line parameters stored in the EEPROM of each control board 20. When the weight sorting device 1 is powered on, the control unit 21 reads out the line parameters stored in the EEPROM of each control board 20, and stores the line parameters for each control board 20 (i.e., for each weighing device 12) in the hard disk drive.

[0041] The control unit 21 can change the line parameters for each control board 20. When the line parameters are changed, the control unit 21 updates the line parameters stored in the hard disk drive of the control unit 21 and the line parameters stored in the EEPROM of the corresponding control board 20.

[0042] Each control board 20 transmits to the control unit 21 information indicating the measurement results of the items by the weighing device 12 and the determination result as to whether the weight of the items is within a specified range. Based on the information received from each control board 20, the control unit 21 displays a monitoring screen on the display device 22.

[0043] As shown in FIG. 5, the control unit 21 displays on the monitoring screen for each weighing device 12 a measurement result image 30 showing the measurement results of the item by the weighing device 12 and the determination result as to whether the weight of the item is within a specified range.

[0044] The weight sorting device 1 must pass an inspection to determine whether it complies with the technical standards for structure or instrument error stipulated in the Measurement Act as a specified measuring instrument. In addition, since the weight sorting device 1 has multiple weighing devices 12, inspection is conducted for each weighing device 12.

[0045] If a malfunction occurs in one of the multiple weighing devices 12, the weight sorting device 1 cannot be used until the malfunctioning weighing device 12 is adjusted or replaced and passes inspection.

[0046] For this reason, the weight sorting device 1 is configured to be able to individually and independently perform inspection for each weighing device 12. Specifically, the control unit 21 is configured to be able to individually and independently set an inspection state for each weighing device 12 to either an uninspected state where the weighing device has not passed inspection, or a inspected state where the weighing device has passed inspection.

[0047] The control unit 21 stores in a hard disk drive the inspection status of the weight checker 1 and the inspection status of each weighing device 12. Furthermore, each control board 20 stores in an EEPROM the inspection status of the corresponding weighing device 12.

[0048] For example, if a malfunction occurs in the weighing device 12 provided in the transport unit 4a, the inspection state of the weighing device 12 provided in the transport unit 4a is set to an uninspected state, and the inspection state of the weight sorting device 1 and the inspection state of each of the weighing devices 12 provided in the transport units 4b to 4f are maintained in an inspected state. Therefore, the weight sorting device 1 can be used as long as the weighing device 12 provided in the transport unit 4a is not used.

[0049] When the weight sorting device 1 is powered on, the control unit 21 reads the inspection status stored in the EEPROM of each control board 20 when the weight sorting device 1 is powered on, and updates the inspection status stored in the hard disk drive for each control board 20 (i.e., for each weighing device 12).

[0050] When the weight sorting device 1 is in a certified state, changes to device parameters, execution of the function to calibrate the sensitivity of the weighing devices 12 connected to each control board 20 collectively or individually, clearing of the history representing the log of the certification state, and changes to the line parameters of all control boards 20 are prohibited.

[0051] On the other hand, when the weight sorting device 1 is in an uncalibrated state, it is permitted to change the device parameters, execute the function of calibrating the sensitivity of the weighing devices 12 connected to each control board 20 collectively or individually, clear the history representing the log of the calibration state, and change the line parameters of all control boards 20.

[0052] When the weighing device 12 is in a certified state, execution of the function to calibrate the sensitivity of the weighing device 12 and changes to the line parameters of the corresponding control board 20 are prohibited. On the other hand, when the weighing device 12 is in an uncertified state, execution of the function to calibrate the sensitivity of the weighing device 12 and changes to the line parameters of the corresponding control board 20 are permitted.

[0053] In this way, when the weight sorting device 1 or the weighing device 12 is in a certified state, that is, when the weight sorting device 1 is in normal use, processing related to adjustment of the weight sorting device 1 or the weighing device 12 that is set to the certified state is prohibited. For this reason, in the following explanation, setting the state to the "certified state" is also referred to as "sealing."

[0054] On the other hand, when the weight sorting device 1 or the weighing device 12 is in an uncertified state, that is, when part of the weight sorting device 1 or the weighing device 12 is unusable, processing related to adjustment of the weight sorting device 1 or the unusable weighing device 12 is permitted. For this reason, in the following explanation, setting the device in an "uncertified state" is also referred to as "releasing" the "seal."

[0055] 5, when there is a weighing device 12 that has been set to an unverified state, i.e., a weighing device 12 that has been unsealed, among the weighing devices 12 provided in each of the plurality of transport units 4a to 4f, the control unit 21 displays a warning image on at least a part of the monitoring screen. In this embodiment, the control unit 21 causes the "?" mark icon 31 that is always displayed on the monitoring screen to blink as a warning image.

[0056] In this way, by displaying the warning image on at least a part of the monitoring screen, it is possible to notify that an unsealed weighing device 12 may be in use. Furthermore, by displaying the warning image on at least a part of the monitoring screen, if a maintenance person who maintains the weight sorting device 1 adjusts or replaces the weighing device 12 and then forgets to seal the adjusted or replaced weighing device 12, it is possible to notify that sealing has been forgotten.

[0057] When the icon 31 is pressed, the control unit 21 causes the display device 22 to display a sealing information screen as shown in Fig. 6. The control unit 21 causes a unit icon 32 representing identification information for identifying the weighing device 12 and the verification status of the weighing device 12 to be displayed on the sealing information screen, corresponding to each weighing device 12.

[0058] The unit icon 32 is formed by an identification information image 32a and a testing status image 32b. The identification information image 32a numerically represents the identification information of the weighing device 12. The testing status image 32b represents the testing status of the weighing device 12 by a display mode.

[0059] The example shown in Figure 6 indicates that the weighing devices 12 with identification information "1," "2," and "6," i.e., the weighing devices 12 installed in the transport units 4a, 4b, and 4f, are sealed, while the weighing devices 12 with identification information "3," "4," and "5," i.e., the weighing devices 12 installed in the transport units 4c, 4d, and 4e, are unsealed.

[0060] The unit icon 32 further indicates whether each weighing device 12 is enabled or disabled. For example, the control unit 21 changes the display mode of the unit icon 32 depending on whether the weighing device 12 is enabled or disabled.

[0061] For example, the control unit 21 changes the color scheme as the display mode of the identification information image 32a depending on whether the weighing device 12 is valid or invalid. The example shown in Fig. 6 indicates that the weighing devices 12 with identification information "1," "2," "4," and "6," i.e., the weighing devices 12 provided in the transport units 4a, 4b, 4d, and 4f, are valid, and the weighing devices 12 with identification information "3" and "5," i.e., the weighing devices 12 provided in the transport units 4c and 4e, are invalid.

[0062] The control unit 21 can individually set each weighing device 12 to be enabled or disabled. A weighing device 12 disabled by the control unit 21 is prohibited from operating and measuring. In addition, the control unit 21 does not display an alarm for an disabled weighing device 12, nor does it input or output signals to or from external devices such as a host computer, which will be described later.

[0063] Furthermore, the control unit 21 does not display the measurement results of an item obtained by an invalid weighing device 12. For example, on the monitoring screen shown in Fig. 5, the control unit 21 always displays the measurement results of an item obtained by an invalid weighing device 12 as "--g".

[0064] 7, the arrangement of the unit icons 32 may be changed within the sealing information screen in response to an input operation on the input device 23. By making it possible to change the arrangement of the unit icons 32 within the sealing information screen, the arrangement of the unit icons 32 can be customized according to the user's usage style.

[0065] The unit icon 32 may further indicate whether an error has occurred in each weighing device 12. The control unit 21 determines that an error has occurred in a weighing device 12 when a communication error has occurred with the control board 20 of the transport unit 4 in which the weighing device 12 is provided, or when error information is received from the control board 20 indicating that the motors 11a to 11c and actuators 14 of the transport unit 4 in which the weighing device 12 is provided are not operating normally.

[0066] The control unit 21 further changes the color scheme of the display mode of the identification information image 32a when an error occurs in the weighing device 12. The example shown in Figure 7 indicates that an error has occurred in the weighing devices 12 with identification information "2" and "6", i.e., the weighing devices 12 installed in the transport units 4b and 4f.

[0067] The sealing and unsealing of the weight sorting device 1 or the weighing device 12 will be described below with reference to examples of screens displayed on the display device 22 by the control unit 21.

[0068] For example, if a malfunction occurs in the weighing device 12 provided in the transport unit 4, a maintenance person will remove the seal on the weight sorting device 1 or the weighing device 12. The control unit 21 authenticates the maintenance person by displaying on the display device 22 an authentication screen that can be accessed from the monitoring screen.

[0069] In this embodiment, authentication is performed by password authentication. However, authentication may also be performed by IC tag authentication, two-dimensional barcode authentication, fingerprint authentication, face authentication, iris authentication, or a combination of these.

[0070] When the authentication is complete, the control unit 21 displays a seal setting screen as shown in Fig. 6 on the display device 22. On the seal setting screen, it is possible to select either sealing / unsealing the weight sorting device 1 (hereinafter also referred to as "all lines") or sealing / unsealing by selecting the weighing device 12 (hereinafter also referred to as "line").

[0071] When sealing / unsealing all lines is selected on the seal setting screen, the control unit 21 causes the display device 22 to display the all line seal setting screen as shown in Fig. 7. The all line seal setting screen allows the user to select whether to seal all lines or unseal all lines.

[0072] When "Release of sealing of all lines" is selected on the all line sealing setting screen, the control unit 21 releases the seals of all lines. That is, the control unit 21 releases the seals of the weight sorting device 1 and all the weighing devices 12.

[0073] When sealing of all lines is selected on the all line sealing setting screen, the control unit 21 seals all lines. That is, the control unit 21 seals the weight checker 1 and all the weighing devices 12.

[0074] When a line is selected and sealing / unsealing is selected on the sealing setting screen shown in Fig. 6, the control unit 21 causes the display device 22 to display an individual line sealing setting screen as shown in Fig. 8. On the individual line sealing setting screen, it is possible to select whether to select a line and seal it, or to select a line and unseal it.

[0075] When either "Select a line and seal" or "Select a line and release seal" is selected on the individual line sealing setting screen, the control unit 21 causes the display device 22 to display a line selection screen as shown in FIG.

[0076] On the line selection screen, the control unit 21 displays an image representing the measurement results of the weighing device 12 on the line selection screen in correspondence with the image representing the line options. In this way, by displaying an image representing the measurement results of the weighing device 12 on the line selection screen in correspondence with the image representing the line options, the weighing device 12 of the line being selected as the target for setting to an unverified state or a verified state can measure the weight of a reference object such as a weight with a known weight, allowing the maintenance person to confirm that the line being selected is correct.

[0077] The control unit 21 may also be configured to display the sealing information screens exemplified in Figures 6 and 7 on the display device 22 on the line selection screen, similar to the monitoring screen shown in Figure 5. By displaying the sealing information screen from the line selection screen, the maintenance person can confirm that the line they are about to select is correct without using a reference object such as a weight with a known weight.

[0078] In addition, the control unit 21 may be configured to display the sealing information screens illustrated in Figures 6 and 7 on the display device 22, similar to the monitoring screen shown in Figure 5, on the sealing setting screen illustrated in Figure 8, the all-line sealing setting screen illustrated in Figure 9, and the individual line sealing setting screen illustrated in Figure 10.

[0079] When a line is selected on the line selection screen, the control unit 21 seals the line selected on the line selection screen shown in Fig. 9 or releases the seal on the selected line, depending on the selection result on the individual line sealing setting screen shown in Fig. 8. That is, the control unit 21 seals the selected weighing device 12 or releases the seal on the selected line.

[0080] While the seal of the weighing device 1 or the weighing device 12 is removed, the unsealed weighing device 12 is adjusted or replaced. For example, while the seal of the weighing device 1 is removed, it is permitted to change the device parameters, to execute a function to calibrate the sensitivity of the weighing devices 12 connected to each control board 20 collectively or individually, to clear the history that shows the log of the inspection status, and to change the line parameters of all control boards 20. Furthermore, while the seal of the weighing device 12 is removed, it is permitted to execute a function to calibrate the sensitivity of the weighing device 12 and to change the line parameters of the corresponding control board 20.

[0081] For example, while the weight sorting device 1 is unsealed, the control unit 21 allows the display device 22 to display a screen for changing device parameters, such as a main conveyor speed upper limit registration screen for setting the main conveyor speed upper limit as shown in Figure 10.

[0082] After the weight sorting device 1 or the weighing device 12 is sealed, an inspector inspects the weighing devices 12 that have been unsealed, and if any weighing devices 12 do not pass the inspection, a maintenance person unseals the weighing devices 12 that did not pass the inspection, adjusts or replaces the unsealed weighing devices 12, and then seals them again.

[0083] The weight checker 1 can be connected to a host computer that centrally manages multiple inspection devices including the weight checker 1. The weight checker 1 may perform operations such as sealing the weight checker 1 or the weighing device 12, removing the seal from the weight checker 1 or the weighing device 12, changing device parameters, and changing line parameters in response to instructions from the host computer.

[0084] As explained above, in this embodiment, by displaying on the display device 22 for each weighing device 12 identification information that identifies each weighing device 12 and a unit icon 32 that indicates the inspection status of each weighing device 12, whether or not the weighing device 12 has passed inspection, it is possible to identify weighing devices 12 that have not passed inspection, and therefore it is possible to prevent the erroneous use of weighing devices 12 that have not passed inspection to determine whether they comply with the technical standards for structure or instrument error stipulated in the Weights and Measures Act as specified measuring instruments.

[0085] Furthermore, in this embodiment, the unit icon 32 further indicates whether each weighing device 12 is valid or invalid, so the unit icon 32 allows the user to confirm whether each weighing device 12 is valid or invalid.

[0086] Furthermore, in this embodiment, the layout of the unit icons 32 can be changed within the seal information screen, allowing the user to customize the layout of the unit icons 32 according to the mode of use.

[0087] While the present invention has been described with reference to exemplary embodiments, it will be apparent to those skilled in the art that modifications may be made without departing from the scope of the present invention, and it is intended that all such modifications and equivalents be included within the scope of the appended claims. [Explanation of symbols]

[0088] 1. Weight sorting device 12 Weighing device 21 Control Unit 22 Display device 32 Unit Icons (Icons)

Claims

1. a plurality of weighing devices (12) for measuring the weight of a plurality of articles that are conveyed separately and independently; a control unit (21) for controlling the plurality of metering devices; a display device (22), The control unit an identification information image (32a) that identifies each of the weighing devices numerically; and an inspection status image (32b) that indicates, in a display mode, whether or not each of the measuring devices identified by the identification information image has passed inspection to determine whether it complies with the technical standards for structure or instrument error stipulated in the Measurement Act as a specified measuring device. Icons (32) formed by the above are arranged for each of the measuring devices and displayed on the display device. A weight measuring device characterized by:

2. The identification information image further indicates whether each of the weighing devices is valid or invalid by a display mode.

2. The weight measuring device according to claim 1.

3. The icons are rearrangeable in the display area of ​​the display device.

3. The weight measuring device according to claim 1 or 2.

4. A weight measuring device according to any one of claims 1 to 2 is provided, A weight sorting device that sorts the articles whose weights have been measured by the weight measuring device in accordance with the measurement results of the weight measuring device.

5. A weight measuring device according to claim 3 is provided, A weight sorting device that sorts the articles whose weights have been measured by the weight measuring device in accordance with the measurement results of the weight measuring device.

Images