Weighing device and weighing label attaching device

Abstract

To provide a weighing device configured to be switchable between a normal mode and a verification mode, and capable of performing a display suitable for verification.SOLUTION: A weighing device having a display unit that displays various information based on a measured value obtained by measuring the weight of an article by a measuring unit, is configured to be controllable so as to switch between a normal mode of displaying the various information based on a stable measured value obtained when measuring the weight of an article, and a verification mode of verifying the performance of the weighing unit to be verified by the operation of an administrator. When controlled in the verification mode, the weighing device displays history of each verification pseudo-material obtained when weighing the verification pseudo-materials.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a weighing device and a weighing labelling device. [Background technology]

[0002] 2. Description of the Related Art Weighing devices for weighing products are known. There is also known a device that weighs a product during transportation, prints the product's weight, price, and the like on a label, and attaches the label to the product (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-267232 Summary of the Invention [Problem to be solved by the invention]

[0004] However, no weighing device or weighing label attachment device is known that has a simple structure, can be controlled by switching between a normal mode and a test mode, and can provide a display suitable for testing. [Means for solving the problem]

[0005] The weighing device according to the present invention has at least the following configuration. A weighing device having a display unit that displays various information based on a measurement value obtained by measuring the weight of an object using a weighing unit, The device is configured to be controllable by switching between a normal mode that displays various information based on a stable measurement value obtained when measuring the weight of an article, and a test mode that tests the performance of the weighing unit to be tested by an administrator's operation, When the device is controlled in the test mode, the device is characterized in that it displays the history of each test dummy material obtained when weighing the test dummy material.

[0006] The weighing labeling device of the present invention affixes a label to an object based on a measurement value obtained by measuring the weight of the object being transported on a conveyor with a weighing unit, and has a display unit that displays various information. This weighing labeling device is configured to be controllable by switching between a normal mode in which a label is affixed to the object based on a stable measurement value obtained when the weight of the object being transported on the conveyor is measured with the weighing unit, and a testing mode in which the performance of the weighing unit to be tested is tested by the operation of an administrator, and when controlled in the testing mode, displays the history of each of the test dummy materials obtained when the weight of the test dummy materials is measured. [Brief description of the drawings]

[0007] [Figure 1] 1 is an overall conceptual diagram showing an example of a weighing label sticking device (weighing device) according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing an example of an electrical function block of the weighing label attachment device. [Diagram 3] 5 is a flowchart showing an example of the operation of the weighing label attachment device according to the embodiment of the present invention. [Figure 4] 1A is a diagram for explaining the operation of the weighing label affixing device in a normal mode, and FIG. 1B is a diagram showing an example of a label affixed to an article (goods). [Diagram 5] 1A is a diagram showing an example of the operation of the measurement label affixing device, FIG. 1B is a diagram showing an example of an authentication screen for an administrator of the measurement label affixing device, and FIG. 1B is a diagram showing an example of a setting screen for various tests in a test mode. [Figure 6] FIG. 13 is a diagram showing an example of a display screen of an instrumental error in a verification mode. [Figure 7] 1A to 1C are diagrams showing examples of measurement values ​​(scale intervals) displayed by the measurement unit of the measurement label attachment device, and FIG. 1D to FIG. 1E are diagrams showing examples of measurement values ​​(scale intervals) displayed in normal mode and inspection mode, respectively. [Figure 8]1A is a diagram showing an example of an operation display screen of the measurement label affixing device in the calibration mode, and FIG. 1B is a diagram showing an example of a deviation inspection screen of the calibration mode. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] A weighing device according to an embodiment of the present invention has a display unit that displays various information based on the measured value obtained by measuring the weight of an object using a weighing unit. This weighing device is configured to be controllable by switching between a normal mode that displays various information based on a stable measured value obtained when measuring the weight of an object, and a test mode that tests the performance of the weighing unit to be tested by the operation of an administrator. When controlled in the test mode, the device displays the history of each test imitation material obtained when measuring the weight of the test imitation material. It is desirable to prepare a test dummy material (sample) with an accurate weight for the number of tests of the test item and perform the test. Note that, taking into consideration the portability of the samples and the weight management of each sample, multiple samples (about 10 pieces) may be prepared and the samples may be used repeatedly for the test. For normal test items, tests are performed in units of 10, so it is preferable to prepare 10 samples. When the test item is tested multiple times in a specified unit (for example, 10 units) for a total of a specified number of times (60 times), the history display for each test dummy material refers to a list display of the weighing results for the specified unit shown by sequentially weighing 10 samples, and is shown by displaying the history (log) of the weighing values ​​for the test for the specified number of times (10 times). In addition, a predetermined number of test pseudo materials (samples), for example 60, may be prepared and the test may be performed using the 60 test pseudo materials, or a smaller number, for example 10, may be prepared and the test may be performed by repeatedly using the test pseudo materials in sequence, or a single test pseudo material may be prepared and the test may be performed by repeatedly using the single test pseudo material in sequence. In addition, the weighing device may be equipped with a scale (weighing unit) on a conveyor that transports items such as goods, and measure the weight (mass) of the items being transported on the conveyor, or it may not be equipped with a conveyor and instead measure the weight (mass) of the items using a scale.

[0009] The weighing label affixing device according to the embodiment of the present invention affixes a label to an object based on a measurement value obtained by measuring the weight of the object being transported on the conveyor with a weighing unit, and has a display unit that displays various information. The weighing label affixing device is configured to be controllable by switching between a normal mode in which a label is affixed to an object based on a stable measurement value obtained when the weighing unit measures the weight of the object being transported on the conveyor, and a testing mode in which the performance of the weighing unit to be tested is tested by the operation of an administrator, and when controlled in the testing mode, displays the history of each of the test imitation materials obtained when measuring the weight of the test imitation materials.

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The embodiment of the present invention includes the contents shown in the drawings, but is not limited thereto. In the following description of each drawing, parts common to parts already described will be given the same reference numerals and some duplicated description will be omitted. An example of a weighing label sticking device that employs the weighing device according to the present invention will now be described.

[0011] As shown in FIG. 1, a measurement label application device 100 according to an embodiment of the present invention is a device that measures the weight (mass) of an object being transported on a conveyor and applies a label to the object based on the measurement value obtained. In detail, the weighing label affixing device 100 includes a conveyor table, a control device 10, a weighing unit 9, a label printing and affixing unit 160, and the like.

[0012] The transport platform has a transport mechanism such as a conveyor that transports items (goods, etc.). On the conveying platform, a conveyor 2, a conveyor 3 (weighing conveyor) equipped with a weighing unit 9, and a conveyor 4 equipped with a label printing and attaching unit 160 are disposed in this order from the upstream side to the downstream side in the conveying direction.

[0013] The conveyor 2 has a pair of rollers R21, R22 arranged at a predetermined distance apart in the conveying direction of the conveying path, and an endless belt B2 stretched between the pair of rollers R21, R22, etc. The conveyor 3 has a pair of rollers R31, R32 arranged at a predetermined distance apart, and an endless belt B3 stretched between the pair of rollers R31, R32, etc. The conveyor 4 has a pair of rollers R41, R42 arranged at a predetermined distance apart, and an endless belt B4 stretched between the pair of rollers R41, R42, etc.

[0014] The conveyors 2, 3, and 4 have drive motors M2, M3, and M4 (conveyor drive units), respectively, and the rollers and endless belts of the conveyors are configured to be rotatable.

[0015] The conveyor 3, located at the midpoint of the conveying path, is provided with a weighing section 9 that measures the weight (mass) of items (products) or samples (dummy materials for testing) placed on the endless belt B3 of the conveyor 3. The control device 10 includes a control unit 1, a display operation unit 120, etc., and is provided in the vicinity of the conveyor 3.

[0016] Above the transport mechanism of the conveyor 4, a label printing and attaching section 160 is disposed. The label printing and pasting unit 160 includes a label issuing unit 161 that prints on a label the weight (measured value) of the item measured by the weighing unit 9 of the conveyor 3, the price according to the weight, item information (product information) related to the item, etc., and issues a label, and a label pasting unit 162 that pastes the label issued by the label issuing unit 161 onto the item weighed by the weighing unit 9 and transported by the conveyor 4.

[0017] The conveyor tables on which the conveyors 2, 3, and 4 are mounted are provided with a plurality of detection sensors, such as transmission type or reflection type photoelectric sensors, for detecting the positions of conveyed objects such as articles and samples S (simulants for testing). In the example shown in FIG. 1, the first detection sensor 71 is disposed near the downstream end of the conveyor 2. The second detection sensor 72 is disposed near the upstream end of the conveyor 3. The third detection sensor 73 is disposed near the downstream end of the conveyor 3. The fourth detection sensor 74 is disposed near the upstream end of the conveyor 4. The fifth detection sensor 75 is disposed in the middle of the conveyor 4, specifically, near the upstream side of the label printing and pasting unit 160. Each detection sensor is provided at a predetermined position as needed. When an item (goods) is transported by conveyors 2, 3, and 4, the control unit identifies the position of the item (goods) based on the detection signals from detection sensors 71-75 and the transport speed of each conveyor, and performs processing such as weighing the item by weighing unit 9 of conveyor 3 and attaching a label to the item by label printing and attachment unit 160.

[0018] FIG. 2 is a diagram showing an example of electrical functional blocks of the weighing label attachment device 100 according to the embodiment of the present invention. The weighing label application device 100 has a control unit 1, a memory unit 12, a display operation unit 120, an interface 20 (IF), a weighing unit 9, a drive motor M2 (conveyor drive unit), a drive motor M3 (conveyor drive unit), a drive motor M4 (conveyor drive unit), a label printing and application unit 160, etc. To the control unit 1, a storage unit 12, a display operation unit 120, an interface 20 (IF), etc. are communicatively connected via a communication line 1B (bus, etc.). The weighing unit 9, the detection sensors 71 to 75, the drive motors (M2, M3, M4) serving as conveyor drive units, and the label print / affix unit 160 are communicatively connected to the control unit 1 via an interface 20 (IF) and a communication line 1B. The label printing and pasting unit 160 includes a label issuing unit 161 and a label pasting unit 162 . The display operation unit 120 includes a display unit 121 and an operation unit 122 . In the example shown in FIG. 2, the control device 10 includes a control unit 1, a storage unit 12, a display operation unit 120, an interface 20 (IF), and the like.

[0019] The control unit 1 comprehensively controls each component of the measurement label affixing device 100. The control unit 1 also executes a control program to realize the functions of the present invention in a computer serving as the measurement label affixing device.

[0020] In detail, the control unit 1 can be switched between a normal mode in which a label is affixed to an item based on a stable measurement value obtained when the weight of the item being transported is measured on the conveyor 3, and an inspection mode in which the performance of the conveyor being inspected is inspected by the operation of an administrator.

[0021] In addition, when the control unit 1 is controlled in the testing mode, it performs a process of continuously displaying on the display unit 121 the instantaneous testing value obtained when weighing the weight of the testing pseudo material (sample) transported by the conveyor 3 on the conveyor 3. In addition, when the control unit 1 controls the conveyor 3 in a testing mode with the endless belt of the conveyor 3 stopped, the control unit 1 may perform a process to continuously display on the display unit 121 the instantaneous testing value obtained when weighing the weight of the testing pseudo material (sample) on the conveyor 3.

[0022] Furthermore, when the control unit 1 is controlling in the inspection mode, the control unit 1 performs a process of changing the conveying speed of the conveyor in accordance with the item of the inspection.

[0023] The control unit 1 can also control the conveyor's rotation. In detail, the control unit 1 can control the switching between a forward conveying method in which the endless belt of the conveyor is rotated in a forward direction to convey articles from upstream to downstream, and a reverse conveying method in which the endless belt of the conveyor is rotated in a reverse direction to convey articles from downstream to upstream. For example, in the testing mode, the test dummy material is once transported from upstream to downstream using the forward transport method, and then the control unit 1 switches to the reverse transport method and controls the conveyor, thereby transporting the test dummy material transported downstream as described above from downstream to upstream. In other words, after the test pseudo material is transported downstream on the conveyor, the manager (examiner, etc.) moves to the downstream side of the conveyor, picks up the test pseudo material, and moves to the upstream side of the conveyor; there is no need for the manager (examiner, etc.) to move himself or herself to move the test pseudo material upstream of the conveyor.

[0024] The storage unit 12 stores a control program, product information (e.g., product name, etc.) that is information about an article (product), measurement values ​​at the time of inspection, inspection results, procedure information (procedure images, etc.) that shows procedures for various inspection items, etc. The storage unit 12 is, for example, a RAM, a ROM, a HDD, an SSD, a portable storage device that is detachable from the device main body, etc.

[0025] The display operation unit 120 has a display unit 121 and an operation unit 122. The display unit 121 is a display device such as a liquid crystal display device, and the operation unit 122 is an operation button, an operation key, a switch, a touch panel, etc. Furthermore, the display operation unit 120 may be a touch panel type display device.

[0026] The weighing unit 9 is provided on the conveyor 3 (weighing conveyor), and weighs the weight (mass) of the items (products) and samples (simulant materials for testing) transported by the conveyor 3, and outputs the weighing results to the control unit 1. In normal use, the load slides onto the conveyor 3, i.e., the weighing is based on non-stable equilibrium, so it takes a certain amount of time for the value measured by the weighing unit 9 to stabilize, resulting in an initial drift.

[0027] Next, an example of the operation of the weighing label attachment device 100 according to the embodiment of the present invention will be described. 3, in step ST1, the control unit determines whether or not the test mode is selected. In detail, if the test mode is selected from the operation input unit, the control unit 1 proceeds to the process of step ST7, and otherwise proceeds to the process of step ST2.

[0028] In step ST2, the control unit 1 controls the weighing label attachment device in normal mode to carry out steps ST3 to ST6 and the like.

[0029] In normal mode, the setting screen of the display operation unit 120 (touch panel display unit) has, for example, as shown in Figure 4 (a), a product name display section D1, a price per 100g display section D2, a measurement value display section D3, an expiration date display section D4, a processing date and time display section D5, a code information display section D6, a price display section D7, etc.

[0030] The product name is displayed in the product name display section D1, and the product name can be changed by operation.

[0031] The price per 100g display section D2 (price per unit amount display section) displays the price per unit amount, such as 100g, and can be changed by operation.

[0032] The measurement value display section D3 displays a measurement value that is a measurement result by the measuring section. The measurement value is, for example, the weight (mass) of a product or the weight (mass) of a sample (dummy material for testing). The expiration date display section D4 displays the expiration date of the product, and can be changed by operation. The processing date and time display section D5 (production date and time display section) displays the processing date and time (production date and time) of the product, and can be changed by operation. The code information display section D6 displays the product code (JAN code, etc.) of the product. A barcode, etc. is printed based on this product code. The price display section D7 displays the price of the product calculated based on the weight value and the price per 100. The price display section D7 may display the price including tax. The control unit 1 stores the setting information set on the setting screen in the storage unit.

[0033] In step ST3, the control unit 1 performs a process of conveying the article (product) by the conveyor. In detail, the operator places the article (product) on the conveyor 2. The conveyor 2 conveys the article (product) in the conveying direction to the conveyor 3.

[0034] In step ST4, the control unit 1 performs a process of weighing the products on the conveyor 3 being transported by the conveyor 3. Then, the conveyor 3 moves the products to a conveyor 4 on the downstream side in the transport direction.

[0035] In step ST5, the control unit 1 performs a label issuing process using the label printing and pasting unit 160. In detail, the control unit 1 issues a label on which the product information and weight (mass) are printed using the label issuing unit 161, based on the product information stored in the memory unit and the result of measuring the weight (mass) of the product using the weighing unit 9. The label will be printed with information about the item (product), such as the product name (e.g., thinly sliced ​​pork belly), price per 100 g, the weight (mass) of the item (product) weighed by weighing section 9 of conveyor 3 (weighing conveyor), code information such as a barcode or two-dimensional code, expiration date, production date, processor name (manufacturer name), address, etc., as shown in Figure 4(b).

[0036] In step ST6, the label attachment unit 162, under the control of the control unit 1, attaches the label issued by the label issuing unit 161 to the item (goods) being conveyed by the conveyor 4. After attaching the label, the control unit 1 controls the conveyor 4 to transport the article (product) downstream in the transport direction.

[0037] Next, an example of the operation of the weighing labeling device when the inspection mode is selected will be described. In step ST7, the control unit 1 performs an administrator authentication process. In this embodiment, only a person who has administrator authority and is registered, such as an administrator, can execute the inspection mode of the measurement label attachment device. For example, as shown in FIG. 5(a), the authentication screen for switching to the test mode (test mode) has an ID display input section D11 where the administrator's ID (administrator identification information) can be input, a PW input section D12 for inputting a PW (password), etc., and an input button D13, etc. When the ID and password are input and the input button D13 is operated, the control section 1 advances the process to step ST8.

[0038] In step ST8, the control section 1 authenticates the administrator based on the administrator's ID and password, and if authentication is successful, the process proceeds to step ST9, and if authentication is not successful, the process proceeds to step ST1. In detail, for example, the memory unit stores administrator information such as the administrator's ID, password, name, biometric authentication information, authority information, etc., and the control unit 1 performs authentication processing based on whether the ID and password entered via the display operation unit 120 match the administrator information stored in the memory unit.

[0039] The administrator information may be stored in a memory unit of the weighing label application device, or in a memory unit of a management server (management computer) that is communicatively connected via a communication network (communication path, etc.).

[0040] The administrator authentication process may be performed using biometric authentication such as iris authentication, face authentication, fingerprint authentication, or vein pattern authentication. The administrator authentication process may be performed using a portable device owned by the administrator (such as an administrator IC card (magnetic card), a hardware token that generates a one-time code, or an authentication app on a smartphone), a security key, or the like. The administrator authentication process may be performed using multi-factor authentication that combines these various types of authentication.

[0041] In step ST9, the control unit 1 transitions to the test mode and performs processes related to the test mode. In detail, the control unit 1 performs processes such as steps ST10 to ST14.

[0042] In step ST10, in the case of the test mode, the control unit 1 performs a process of displaying an operation procedure corresponding to the selected test item on the display unit 121. That is, the manager (operator) can perform various tests by looking at the procedure corresponding to the test item displayed on the display unit 121 and operating the measurement label affixing device according to the procedure.

[0043] For example, as shown in Fig. 5(b), a selectable list of inspection items for the conveyor 3 is displayed on the display operation unit 120. In detail, the inspection screen shown in Fig. 5(b) has operation buttons D15 and the like that can select instrument error, offset, tare, alternative operating speed, dynamic correction, balance stability, and the like. A test status display frame D16 (test status display section) is provided near the operation button D15 for each test item. This test status display frame D16 displays "Completed" if the test has been completed, and displays "Not yet" if the test has not yet been performed. The test status display frame D16 may display "Pass" or "Fail" or the like, which indicates the pass / fail result of the test for each test item. Furthermore, the control unit 1 can display the operation buttons (D15) for the test items so that the status of the test can be distinguished by color. In detail, the control unit 1 may display the operation buttons D15 for the test items in blue after the test has been passed, in red if the test has been failed, and in yellow if the test has not been completed, so that the operator (inspector, etc.) can easily grasp the progress of the test by looking at the operation buttons D15.

[0044] The instrumental error is a test in which a sample (dummy material for calibration) is transported on a conveyor 3 (weighing conveyor), weighed by the weighing unit 9, and the value indicated by the weighing unit 9 (measuring instrument) minus the true value to be indicated is checked to see if it is within the calibration range. The instrumental error can be used as an index of the individual accuracy of the measuring instrument based on the difference between the true value and the false value.

[0045] The offset load test involves placing a sample (pseudo material for testing) to be weighed at any position (within the area where weighing is possible) on the conveyor 3 (which has the weighing section) and checking for any bias in the weighed values ​​(while the conveyor is operating).

[0046] The tare is set by placing a sample (dummy material for testing) on ​​the conveyor 3 (weighing conveyor) with the endless belt of the conveyor 3 (weighing conveyor) stopped from rotating, and after the tare setting operation, checking the weight value measured by the weighing unit 9, which is displayed on the display unit 121.

[0047] The alternative operating speed is set to the intermediate value of the operating range of the conveyor 3 (weighing conveyor), for example, to 1 / 2 the maximum usable conveying speed, and while a sample (pseudo material for testing) is being transported by the conveyor 3 (weighing conveyor), testing is performed based on the measurement value measured by the weighing unit 9 (while the conveyor is operating).

[0048] The range of dynamic correction (while the conveyor is operating) is determined by setting the conveyor 3 (weighing conveyor) to the maximum conveying speed (maximum conveying speed in use) for the sample (pseudo material for testing), and while conveying at the maximum conveying speed, weighing is performed by the weighing section 9 of the conveyor 3 to confirm whether the dynamic correction is working within the limited range of dynamic correction. In the weighing label application device, a difference occurs between the static weighing value obtained by weighing the sample (pseudo material for testing) in the weighing section 9 when the conveyor 3 is stopped and the dynamic weighing value obtained by weighing the sample (pseudo material for testing) in the weighing section 9 while it is being transported by the conveyor 3, so a dynamic correction process is applied to the dynamic weighing value.

[0049] To check for equilibrium stability (while the conveyor is stopped), on conveyor 3 (weighing conveyor), load the weighing section 9 with 50% of the upper limit load of the weighing capacity or weighing range used, and when the balance is reached, use a single action (such as pushing the weighing section with your hand) to upset the balance. After that, release your hand and check on the display to see if there is any change in the weighing value measured by the weighing section for 5 seconds.

[0050] FIG. 6 is a diagram showing an example of a display screen when an instrument error occurs in the calibration mode (calibration mode). The display screen shown in FIG. 6 has a procedure display section D21, a measurement value display section D22, a history display section D23, a pass / fail display section D24, a remaining number display section D25, an average value display section D26, and the like.

[0051] The procedure display section D21 displays the procedure, for example, "Instrument error Procedure 1: Run the sample (pseudo material for calibration)." The measurement value display section D22 displays the measurement value obtained by the weighing section 9. In the inspection mode, the measurement value display section D22 displays the measurement value in the inspection mode. The measurement value in the inspection mode is displayed in units of, for example, 1 / 5 or less of the scale interval, preferably 1 / 10 of the scale interval. Specifically, the measurement value in the inspection mode is displayed in units of 0.1 g for a scale interval of 1 g. The measurement value (instantaneous value) continuously displayed on the measurement value display unit D22 does not display a stable numerical result of weighing by the weighing unit 9, but rather the current measurement value (weight) transmitted from the weighing unit 9 to the control unit 1 at regular intervals, and the control unit 1 displays the current measurement value in real time on the measurement value display unit D22 of the display unit, that is, it is an instantaneous value (measurement value) for inspection without rounding.

[0052] In this embodiment, in the testing mode, the history display unit D23 weighs a sample (pseudo material for testing) using the weighing unit 9, and displays a list of the history (log) of the measurement values ​​(measurement values ​​in the testing mode) obtained by the weighing using the weighing unit 9. In detail, the history display unit D23 can display, for example, all or a part (by a specified unit or by multiple specified units) of the history of the measurement values ​​(measurement values ​​in the testing mode) for a predetermined number of times (e.g., 60 times). In detail, the history display section D23 displays the history of stable values ​​of the measured values ​​for each sample (pseudo material for calibration) measured by the measuring section 9. In addition, an upper or lower limit may be set for the measurement value of the test (measurement value in the test mode), and when a corresponding measurement value is obtained, the display mode may be changed, such as by inverting the color. Furthermore, when the measurement value indicating the measurement result by the measuring unit is obviously not appropriate, the control unit may determine each time whether the measurement value is correct or not, and may perform control to stop the test itself during the test processing step. In the example shown in FIG. 6, the history display section D23 displays, as history display, the number of times, the measurement value (the measurement value for normal mode), the measurement value for the test mode, a value required depending on the test item, and the like. The number of times in the history display section D23 is the number of times of inspection (number of times of testing). The measurement value in the history display section D23 is a numerical value measured in normal mode (a measurement value for normal mode), and is a numerical value displayed on the display screen in normal mode (for example, a numerical value displayed in the measurement value display section D3 shown in FIG. 4). The measurement value in the calibration mode of the history display section D23 is a stable value of the measurement value for each sample (dummy calibration material) measured by the measuring section 9. The value required for the inspection is a value displayed corresponding to the inspection item, and in the example shown in Figure 6, it is a value at the time of the inspection of the instrument error, and displays the difference between the measurement value in normal operation and the measurement value in the inspection mode (for example, the measurement value in the inspection mode is used as the standard). Note that the display format of this "value required for the inspection" differs for each inspection item.

[0053] The control unit 1 judges whether the test of the instrumental error passes or fails based on the average value of the measurement values ​​(measurement values ​​in the test mode) obtained by measuring the sample (pseudo material for test) a predetermined number of times (for example, 60 times) by the measuring unit. If the average value is within the test tolerance, the control unit 1 displays the fact that the test result is pass on the pass / fail display unit D24, and otherwise performs processing to display the fact that the test result is fail.

[0054] The remaining number display section D25 displays the number of tests (eg, 60 tests) using the sample (pseudo material for test) and the remaining number (eg, 30 tests), and can display the remaining number in a countdown manner.

[0055] The average value display section D26 can display the average value of the measured values ​​of the test carried out up to that point, and the progress of the test carried out up to that point.

[0056] FIG. 7 is a diagram for explaining the scale interval and the measurement values ​​in the inspection mode. In detail, when an object or sample (pseudo material for calibration) is weighed by the weighing unit, in normal mode, the result is a scale display (digit display usable for trade and certification) as shown in Figures 7(a), 7(b) and 7(c), and in calibration mode, the measurement value is displayed in units of 1 / 10 of the scale as shown in Figures 7(d), 7(e) and 7(f). In detail, for the weight printed on the product label used in commercial transactions, a stable measurement value after the initial drift of the weighing unit is naturally required. Meanwhile, during the inspection, the initial drift of the weighing conveyor itself is also monitored, so the instantaneous value for inspection is continuously displayed on the display unit 121. In this embodiment, the instantaneous value for the test is displayed as the measured value in the test mode. For example, when about 500 g of a test dummy material is conveyed, the display unit 121 displays a value of about 500 g after an initial drift each time the material passes through the conveyor, then the value becomes 0, and then displays a value of about 500 g again after the initial drift. In reality, the manager (operator) will monitor not complete continuous changes in measurement values ​​that cannot be seen with the naked eye, but rather changes in measurement values ​​that are discrete values ​​sampled every specified period of time.

[0057] FIG. 8 is a diagram showing an example of a screen in the test mode (test mode) when the device is placed offset. In detail, the display screen shown in FIG. 8(a) has a procedure display section D31, a procedure image display section D32, a start button D33, and the like. The procedure display section D31 displays the procedure for offset placement, etc. In detail, in the example shown in Fig. 8(a), the procedure display section D31 displays "Offset placement procedure 1: Place the sample on the upstream side in the traveling direction", etc.

[0058] The procedure image display section D32 displays the procedure for offset placement in the form of images. In detail, in the example shown in Figure 8(a), the transport direction of the sample S by the endless belt B3 of the conveyor 3 is shown from right to left, and the width direction of the conveyor 3 (the up and down direction shown in Figure 8(a)) is shown perpendicular to the transport direction. For example, 10 to 60 samples S are prepared. The width of the samples S is 1 / 2 the width w of the endless belt B3. The procedure image display area D32 indicates the placement positions of the samples S, and in detail indicates that the first sample S is to be placed at a position (placement position) on the right side of the conveying direction of the endless belt B3 of the conveyor, and the next sample S is to be placed at a position (placement position) on the left side. From the third sample onwards, the placement positions of the samples S are right, left, right, left, . . .

[0059] When the start button D33 is operated, the control unit 1 starts the offsetting, and while the conveyor 3 transports the sample S, the weighing unit 9 performs weighing for the purpose of verification.

[0060] During offset placement, as shown in Fig. 8(b), the measurement value display section D35 displays the measurement value for the inspection mode by the weighing section, and the history display section D36 displays all or part of the history of the measurement values ​​(measurement values ​​for inspection) obtained by the weighing section a predetermined number of times (e.g., 60 times). The pass / fail display section D37 displays the pass / fail result of the inspection.

[0061] In step ST11, the control unit 1 controls the conveyor in accordance with the item of the inspection. For example, the control unit 1 operates the conveyor in the case of an instrumental error and stops the conveyor in the case of equilibrium stability.

[0062] In step ST12, the control unit 1 performs a measurement process according to the item of the test. In detail, the control unit 1 performs processing according to each of the instrument error, the offset load, the alternative operation speed, the dynamic correction, and the like while driving the conveyor. Moreover, the control unit 1 performs processing appropriate for each of the tare weight, balance, etc., while the conveyor is stopped.

[0063] In step ST13, the control unit 1 performs a process of displaying an instantaneous value, a stable weighing value, etc. as the weighing value obtained by the weighing unit 9 on the display unit 121. The control unit 1 also displays a list of the weighing values ​​on the display unit.

[0064] In step ST14, the control unit 1 displays, on the display unit, buttons such as an "End Test" button (not shown) and a "Next Test" button (not shown) that can be operated, and if the "Next Test" button is operated, proceeds to the processing of step ST9, and if the "End Test" button is operated, ends the testing process.

[0065] If the weighing unit 9 fails the inspection midway through, the control unit 1 may stop the inspection. When the inspection is stopped, the control unit 1 may display an alert to that effect on the display unit 121.

[0066] <Overview of the embodiment> [Technical field] The present invention relates to a weighing device and a weighing labelling device. [Background technology] 2. Description of the Related Art Weighing devices for weighing products are known. There is also known a device that weighs a product during transportation, prints the product's weight, price, and the like on a label, and attaches the label to the product (see, for example, Patent Document 1). [Prior art document] [Patent documents] [Patent Document 1] Japanese Patent Application Laid-Open No. 7-267232 [Summary of the invention] [Problem to be solved by the invention] However, there is no known weighing device or weighing label attachment device that has a simple structure, can be controlled by switching between a normal mode and a test mode, and can provide a display suitable for testing. [Means for solving the problem] (1) As described above, one aspect of this embodiment is a weighing device having a display unit 121 that displays various information based on the measurement value obtained by measuring the weight of an item using a weighing unit 9, and is configured to be controllable by switching between a normal mode that displays various information based on the stable measurement value obtained when measuring the weight of an item, and a testing mode that performs performance testing of the weighing unit 9 to be tested by operation of an administrator, and when controlled in the testing mode, displays the history of each testing pseudo material obtained when weighing the weight of the testing pseudo material. In detail, the weighing device has a control unit 1 that can be switched between a normal mode that displays various information based on stable measurement values ​​obtained when measuring the weight of an article, and a testing mode that tests the performance of the weighing unit 9 to be tested by the operation of an administrator. When the control unit 1 is controlled in the testing mode, the control unit 1 displays, on the display unit 121, the history of each test dummy material obtained when the weight of the test dummy material is measured. That is, it is possible to provide a weighing device that is configured to be switchable between a normal mode and a testing mode and that can provide a display suitable for testing.

[0067] (2) One aspect of this embodiment is the weighing device according to (1), wherein the display unit 121 further continuously displays instantaneous values ​​for calibration. In other words, it is possible to provide a weighing device that can calibrate the weighing section with high accuracy when controlled in the calibration mode.

[0068] (3) One aspect of this embodiment is the weighing device described in (1) or (2), in which the display unit 121 is capable of further displaying information relating to the test, for example as shown in Figures 5(b), 6, and 8. That is, the administrator (operator, etc.) can view information items related to the test, such as the test procedure, and can easily proceed with the test according to the test procedure, and can also view the measurement values ​​of the measurement results obtained by the measurement unit.

[0069] (4) One aspect of this embodiment is the weighing device according to any one of (1) to (3), further comprising a conveyor (such as conveyor 3), the weighing unit 9 measures the weight of an article being conveyed on the conveyor (such as conveyor 3), and the display unit 121 displays various information based on the obtained measurement value. The weighing device also has a control unit 1 that controls the speed of the conveyor (such as conveyor 3), and the control unit 1 is capable of changing the transport speed of the conveyor (such as conveyor 3) depending on the item of inspection. In other words, without the administrator (operator) having to perform cumbersome operations such as manually adjusting the speed of the conveyor 3 etc. for each test item, the control unit 1 can change the conveying speed of the conveyors (conveyor 3 and conveyors 2, 4 etc. as necessary) according to the test item, and optimally control the conveyor conveying speed according to the test item, making it possible to perform each test item with high precision.

[0070] (5) One aspect of this embodiment is that in the weighing device described in (4), the control unit 1 is capable of making the conveying speed of the conveyor 3 of the weighing unit 9 that is to be inspected different from the conveyors that are not to be inspected (such as conveyor 2 and conveyor 4) depending on the item of inspection. That is, for example, when a plurality of test pseudo materials (samples) are transported at a predetermined interval to conveyor 2 (e.g., an in-feed conveyor), conveyor 3 (weighing conveyor), conveyor 4 (e.g., a conveyor having a label printing and application section 160), etc., and the conveyor 3 is inspected, the conveying speed of conveyors 2 and 4 can be controlled to be slower than the conveying speed of conveyor 3 (weighing conveyor), thereby providing a weighing device that can easily perform various inspections even when the number of test pseudo materials (samples) is relatively small.

[0071] (6) One aspect of this embodiment is a measurement label affixing device 100 that affixes a label to an object based on a measurement value obtained by measuring the weight of the object being conveyed on a conveyor 3 with a weighing unit 9 and has a display unit 121 that displays various information, and is configured to be switchable between a normal mode in which a label is affixed to the object based on a stable measurement value obtained when the weight of the object being conveyed on the conveyor 3 is measured with the weighing unit 9, and a test mode in which a performance test (measurement performance test) of the weighing unit 9 to be tested is performed by an administrator. In other words, the measurement label affixing device 100 has a control unit 1 that can be switched between a normal mode and a test mode. When controlled in the test mode, the control unit 1 displays the history of each test dummy material obtained when the weight of the test dummy material is measured. That is, it is possible to provide a measurement label application device 100 that is configured to be switchable between a normal mode and a testing mode, and that can perform testing with high accuracy when controlled in the testing mode.

[0072] In addition, when the number of test dummy materials (samples) to be used for testing is set by an operation signal from the operation input unit, the control unit 1 may control the conveying speed of the conveyor according to the number of test dummy materials (samples). For example, when 10 samples are used to perform 60 weighings for testing, the number of samples is set to 10, and the control unit 1 controls the conveyor to transport the 10 samples in order at a first transport speed to test the conveyor, and then changes the conveyor to a lower speed (second transport speed). When the 10 samples that have been moved downstream are moved upstream and the samples are used again to start further testing, the control unit 1 changes the conveyor to the first transport speed and continues testing the conveyor. Then, when the specified number of weighings for testing (60 times) have been completed, the control unit 1 stops driving the conveyor. The number of samples and the number of measurements for the calibration are not limited to those in the above-mentioned embodiment.

[0073] Furthermore, the control of the conveyor during inspection is not limited to the above-described embodiment, and the display operation unit may be provided with operable buttons (GUI, physical buttons, etc.) for adjusting the conveyor speed to low, normal, high, etc., and the control unit may control the conveyor transport speed in response to button operation.

[0074] In addition, the memory unit may store a conveyor control pattern associated with each test item, and the control unit, when in test mode, may read out the conveyor control pattern corresponding to the test item from the memory unit and control the conveyor transport speed, stopping, etc. according to the control pattern.

[0075] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configurations are not limited to these embodiments, and the present invention also includes design changes and the like that do not deviate from the gist of the present invention. In addition, the embodiments shown in the above-mentioned drawings can be combined with each other as long as there are no particular contradictions or problems in terms of purpose, configuration, and the like. Furthermore, the contents of each drawing may be independent embodiments, and the embodiment of the present invention is not limited to one embodiment obtained by combining the drawings. [Explanation of symbols]

[0076] 1...Control unit 2...Conveyor 3...Conveyor (weighing conveyor) 4...Conveyor 9…Measuring part 10...Control device 12...Storage section 100...Weight label attachment device 120...Display operation section 121...Display section 122...Operation unit 160...Label printing and pasting section 161…Label issuing department 162...Label attachment section M2, M3, M4...Drive motor (conveyor drive section)

Claims

1. A weighing device having a display unit that displays various information based on a measurement value obtained by measuring the weight of an object using a weighing unit, The device is configured to be controllable by switching between a normal mode that displays various information based on a stable measurement value obtained when measuring the weight of an article, and a test mode that tests the performance of the weighing unit to be tested by an administrator's operation, When controlled in the test mode, the history of each test material obtained when weighing the test material is displayed. A weighing device characterized by:

2. The display unit further continuously displays instantaneous values ​​for verification.

2. The weighing device according to claim 1 .

3. The display unit is capable of displaying information related to the examination.

3. A weighing labelling device as claimed in claim 1 or 2.

4. In addition, it is equipped with a conveyor. The weighing unit measures the weight of an object being transported on the conveyor, The display unit displays various information based on the obtained measurement values, A control unit for controlling the speed of the conveyor is provided. The control unit is capable of changing the conveying speed of the conveyor depending on the item of the inspection.

4. A weighing device according to claim 1 .

5. The control unit is capable of making the conveying speed of the conveyor of the weighing unit that is to be inspected different from the conveyor that is not to be inspected depending on the inspection item.

5. A weighing device according to claim 4.

6. A weighing label affixing device that affixes a label to an object based on a measurement value obtained by measuring the weight of the object being transported on a conveyor using a weighing unit and has a display unit that displays various information, The device is configured to be controllable by switching between a normal mode in which a label for an article is affixed to the article based on a stable measurement value obtained when the weight of the article being transported on the conveyor is measured by the weighing unit, and a test mode in which a performance test of the weighing unit to be tested is performed by an administrator, When controlled in the test mode, the history of each test material obtained when weighing the test material is displayed. A weighing label application device comprising:

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