JP2022160320A - Measured weight labeling device and control program therefor - Google Patents

Abstract

To prevent erroneous weighing even when the weight of a product to be weighed changes significantly.SOLUTION: A measured weight labeling device 1 is provided, comprising: weighing means 30, 30a for measuring the weight of a product or a sample; and display means 12a configured to display a product weight upper limit computed on the basis of a uniformly set weight upper limit proportion and weight of the sample weighed by the weighing means.SELECTED DRAWING: Figure 4

Description

The present invention relates to a weighing device and a control program for the weighing device.

When issuing a label to be affixed to a weighed product whose price is determined according to weight (also called "non-fixed measure product"), the product is priced based on the weight value of the product and the price data per unit weight. , weighing devices for printing on labels are known.

Therefore, there is a need for a technology that reliably prevents pricing based on erroneous weighing results (for example, Prior Document 1).

JP-A-2009-036554

Patent Literature 1 discloses a weighing management system in which upper and lower limits for the weight of products to be served are set.

In the system of Patent Literature 1, an upper limit value and a lower limit value of weight are set for each product type. However, even for products of the same type, the serving amount per pack may vary depending on the day of work, the worker, or the production volume of the day, and may not be uniform.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to prevent erroneous weighing even when the weight of a product to be weighed changes significantly.

In order to achieve the above object, a weighing and value assigning device according to one aspect of the present invention includes weighing means for weighing a product or a sample product, a uniformly set weight upper limit ratio, and weighing by the weighing means. and display means for displaying an upper limit of the weight of the product calculated based on the weight of the sample product.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the appearance of a weighing value assigning device according to a first embodiment of the present invention; FIG. 4 is a schematic diagram showing an example of a label issued by the weighing and pricing device; FIG. 2 is a functional block diagram of the weighing device; 4 is a first example of a weighing issuance screen displayed on the weighing and pricing device. FIG. 10 is a diagram showing an example of an allowable value setting screen displayed on the weighing value attaching device, in which (a) an example of selecting that weight judgment is to be performed, (b) an example of selecting that weight judgment is not to be performed; This is an example of Fig. 10 is a second example of a weighing issuance screen displayed on the weighing and pricing device; Fig. 2 is a first example of a tare weight setting screen displayed on the device with weighing value; 4 is a flow chart showing an example of the flow of processing of the weighing and pricing device, comprising: (a) a flow chart for calculating the upper limit value of product weight; is. It is a figure which shows another example of an allowable value setting screen.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A weighing value assigning device according to an embodiment of the present invention will be described below with reference to the drawings.
Outline of Weighing and Pricing Apparatus FIG. 1 is a schematic diagram of a weighing and pricing apparatus (measurement and pricing label issuing apparatus, which is also a label issuing apparatus) 1 according to the first embodiment of the present invention. This weighing and pricing apparatus 1 is installed, for example, in the backyard of a store and weighs various commodities. A product is a product in which contents such as food are placed on a tray and enclosed in a plastic film, a plastic case, or the like.

The weighing and pricing apparatus 1 also performs pricing processing for determining the price of the product based on the weighing result, and issuing processing for issuing a label on which the price is printed. The issued label is attached to various products or product containers. The pricing process and the issuing process may be included in one hardware configuration together with the functional units that perform weighing processing, or may be implemented partially or wholly by different hardware configurations. In this case, the weighing and pricing apparatus 1 has a communication processing unit that transmits data for pricing processing, including at least weighing results, to another terminal or an external device such as a server. The other terminal or server performs pricing processing based on the data.

As shown in the figure, the device 1 with weighing value includes a conveyor 11, a display 12, a sensor 13, a labeler 14, a power cylinder 15, a labeler up/down adjustment switch 16, a labeler back-and-forth adjustment switch 17, a switch group 18, and a control unit 20. Prepare.

The conveyor 11 is a device that conveys products. The conveyor 11 conveys products from left to right in the drawing. The conveyor 11 is configured by arranging an infeed conveyor 11a, a scale conveyor 11b, and a labeler conveyor 11c in this order in the transport direction. For products, the infeed conveyor 11a is a conveyor on which products are placed. The scale conveyor 11b is a conveyor arranged above the load cell 30a, and conveys products on the load cell 30a. In addition, the products are weighed on the conveyor 11b. The labeler conveyor 11c is a conveyor arranged below the labeler 14, and the products are labeled on the conveyor. Conveyor 11 is an example of a conveying means.

The display 12 has a structure in which a touch panel 12b is laminated on a liquid crystal display 12a, so that data can be displayed and input on the same surface. The liquid crystal display 12a is an example of display means. The sensor 13 is a sensor that detects products on the conveyor 11 . The sensor 13 has, for example, a first sensor 13a and a second sensor 13b arranged downstream of the first sensor 13a. In this embodiment, the first sensor 13a is arranged on the side of the infeed conveyor 11a and detects the products on the infeed conveyor 11a. The second sensor 13b is arranged on the side of the scale conveyor 11b and detects the products on the scale conveyor 11b.

The labeler 14 is a mechanism that prints a label to be attached to a product and affixes the printed label to the product. The labeler 14 is suspended and supported by a power cylinder 15 . When the labeler elevation adjustment switch 16 and the labeler front/rear adjustment switch 17 are pressed, the power cylinder 15 is operated to adjust the height of the labeler 14 with respect to the labeler conveyor 11c and the front/back position of the labeler 14 in the conveying direction. In the labeler 14, when the product is conveyed onto the labeler conveyor 11c, an appropriate suction unit supporting the printed label moves up and down to attach the label to the upper surface of the product.

Note that the weighing device 1 may have a plurality of labelers 14 . For example, the weighing and pricing apparatus 1 may have three labelers 14 , two above the conveyor 11 and one below the conveyor 11 . In this case, the upper labeler 14 labels the top surface of the merchandise and the lower labeler 14 labels the bottom surface of the merchandise.

The switch group 18 mainly includes a main power switch 18a, an operation lamp 18b, an emergency stop switch 18c, a conveyor operation switch 18d and a conveyor stop switch 18e of the weighing device 1. It should be noted that the switch group 18 is not limited to this, and may have switches capable of inputting various commands. Switch group 18 may have, for example, a zero reset key.

FIG. 2 is a schematic diagram showing an example of a label E issued by the weighing and pricing apparatus 1. As shown in FIG. On label E, in addition to the product name, the price per unit quantity such as 100g, the weight of the contents of the product, and the price of the product obtained by multiplying the price per unit quantity by the weight of the content and are displayed. Also printed on the label E are a bar code that can be read by a reader, expiration date or expiry date, information on the producer, information on the seller, and the like.

FIG. 3 is a block diagram showing the configuration of the weighing device 1. As shown in FIG. The weighing and pricing device 1 includes a control section 20 , a weighing section 30 , a printing section 40 , a sticking section 50 and an input/output section 60 . The weighing unit 30 has a load cell 30a and weighs the products on the scale conveyor 11b. That is, the weighing area of the weighing unit 30 is on the scale conveyor 11b. The weighing unit 30 and the load cell 30a are examples of weighing means. The printing unit 40 has a label issuing unit 40a. The label issuing unit 40a prints labels. The print control unit 23, the print unit 40, and the label issuing unit 40a are examples of label issuing means. The sticking section 50 has a sticking mechanism section 50a. The sticking mechanism section 50a sticks the printed label to the product on the labeler conveyor 11c. The label issuing section 40 a and the sticking mechanism section 50 a are included in the labeler 14 .

The input/output unit 60 includes the display 12 and the switch group 18 . The display 12 has a structure in which a touch panel 12b is laminated on a liquid crystal display 12a, and the liquid crystal display 12a is an example of display means for displaying various data. When touched by the operator's finger, the touch panel 12b detects the touched position and receives an input corresponding to the detected position.

The control section 20 includes a CPU 21 , a load cell control section 22 , a print control section 23 , a sticking control section 24 , an operation control section 25 , a ROM 26 and a RAM 27 . The CPU 21 is interconnected with each section of the control section 20 via a bus.

The CPU 21 reads the control program stored in the ROM 26 and various information stored in the RAM 27, and controls each section based on the read control program and various information. The CPU 21 also causes the RAM 27 to store necessary information. The ROM 26 stores various information such as various programs executed by the CPU 21, for example. The load cell control section 22 controls the load cell 30 a included in the weighing section 30 . The print control section 23 controls the print section 40 . The sticking control section 24 controls the sticking section 50 . The operation control unit 25 controls the touch panel 12 b and the switch group 18 . The display control unit 28 controls the liquid crystal display 12a. The RAM 27 is a temporary storage area for storing information used by the CPU 21 . The RAM 27 is storage means for storing various files.

The CPU 21 is also an input control section that acquires information input to the touch panel 12 b or the switch group 18 via the operation control section 25 .

Further, the CPU 21 is also an output control unit that changes the display contents of a weighing issuance screen G1, which will be described below, displayed on the touch panel 12b. The output control unit is configured to output various information to be transmitted to the operator, and instead of or in addition to the configuration for displaying information by controlling the liquid crystal display 12a as described above, other methods such as sound can be used. may be used.

●Functional Unit Here, the configuration of the software resources of the weighing device 1 will be described together with examples of screens displayed by the operation of the software resources.
The weighing apparatus 1 shown in FIG. 3 includes an arithmetic device such as a CPU 21 for executing information processing and a storage device such as a RAM 27 and a ROM 26 in the control unit 20. , a tolerance calculation unit, a weighing unit and a determination unit. The control unit 20 executes a computer program for controlling the weighing device 1 . The computer program can be provided by downloading via a network such as the Internet, or can be provided by being recorded on various computer-readable recording media such as a CD-ROM.

The information acquisition unit is a functional unit that acquires information from an external device such as a server connected via a network. The information acquisition unit acquires an allowable range of product weight, a product master including information on the product, and the previous value of the tare weight. Note that the acquired information is an example.

The product master is information that stores product information, price information, etc. in association with product identification information (PLU code). In addition, the product master stores the tare weight specified for each product, that is, the specified tare weight.

The permissible range of product weight is information indicating the ratio of the product weight to the reference value. The allowable range is configured by, for example, information indicating the upper and lower limits of product weight. The ratio to the reference value is specifically defined as a percentage. For example, it is stored that the upper limit weight ratio is 140% of the reference value. Further, it is stored that the lower limit weight ratio is 50% of the reference value. The upper limit ratio and lower limit ratio can be changed by the operator's input. Further, in the present embodiment, the upper limit ratio and the lower limit ratio are respectively stored with respect to the reference value, but it may be equally set such as "±40% with respect to the reference value".

The permissible range of product weight is uniformly stored as a percentage of the weight regardless of the product type. According to this configuration, there is no need to store the allowable value for each product, and the configuration is simple. The allowable range, for example, has an upper limit of 140% of the reference value and a lower limit of 50% of the reference value.

Note that the allowable range of product weight may be stored for each product. For foods with high price per weight data, a large tolerance leads to greater price variability from product to product. By making the allowable range narrower for such products than for other products, it is possible to make adjustments such as making the variation in price of each product more uniform.

The previous value of the tare weight is the tare weight set immediately before performing the zero reset.

In addition, in the present embodiment, the information acquired by the information acquisition unit is stored in a storage unit of an external device such as a server. However, in addition to or instead of this configuration, the weighing device 1 may display some or all of the percentages of the upper and lower limits of the weight, the product master, the allowable range of the product weight, the previous value of the tare weight, and the like. You may have a memory|storage part which memorize|stores. In this case, the information acquisition section may acquire information from the storage section of the measurement and pricing device 1 .

The allowable value calculation unit is a functional unit that calculates the allowable value of the weight of the product based on the reference value of the product weight and the allowable range of the product weight indicated by the ratio to the reference value. The reference value of the product weight is, for example, the weight of a sample product weighed by the scale conveyor 11b before manufacturing the product. A sample product is, for example, a product produced by actually serving the product on a tray. According to this configuration, it is possible to set the reference value based on the sample product arranged by the worker who is scheduled to perform the work. In other words, it is possible to set the reference value in consideration of variations in the serving of each worker. In addition, by preparing sample products in consideration of the serving amount of the work day, it is possible to set a reference value in consideration of variations for each work day. Furthermore, the weight of the sample product may be adjusted according to the production volume of the day, the delivery destination store, and the like. The sample item may be an item whose weight is known in advance instead of the same tray and contents as the actual product.

The allowable value calculation unit calculates the allowable value of the product weight based on the weight of the sample product weighed by the weighing unit 30 and the allowable range of the product weight indicated by the ratio to the reference value. For example, if the weight of the sample product is 300 g, the upper limit weight ratio is 140% of the reference value, and the lower limit weight ratio is 50% of the reference value, the allowable value calculation unit determines that the upper limit weight is 420 g and the lower limit weight is 420 g. Calculate the value to be 150 g.

The weighing unit is a functional unit that weighs the objects to be weighed placed on the scale conveyor 11b. The weighing unit refers to the tare weight, performs tare subtraction processing from the weighing result, and calculates the weight of the contents on the liquid crystal display 12a. Data on the weight of the content is referred to by the judging section and the label issuing section 40a.

The determination unit is a functional unit that determines whether the label issuing unit 40a issues a label based on the weight of the product and the upper limit value or lower limit value. The determination unit refers to the allowable value and determines whether the product weight weighed by the weighing unit 30 is within the allowable range. In addition, when the product weight exceeds the allowable range, the determination unit prohibits the issuance of a label to be affixed to the product. In other words, when the product weight exceeds the upper limit, the label issuing unit 40a does not issue a label attached to the product. Also, when the product weight is below the lower limit, the label issuing unit 40a does not issue a label to be attached to the product. At this time, the operation of the conveyor 11 does not stop. As a result, since no label is affixed to a product whose weight exceeds the allowable range, the worker can visually identify the product downstream of the weighing and value assigning device 1 . Moreover, according to this configuration, compared with the configuration in which the conveyor 11 is stopped, the product manufacturing line does not need to be stopped, so manufacturing efficiency can be maintained.

In addition, the determination unit is connected to the weighing and pricing device 1 and transmits a signal to a sorting device disposed downstream of the conveyer 11 in the conveying direction to identify the product as a product whose product weight is within the allowable range. You may let it convey to another route. Further, the determination unit displays an error screen on the liquid crystal display 12a via the display control unit 28, and also notifies the error by an appropriate configuration that can be sensed by the operator, such as sound such as a beep or voice, or light. good.

Products to which labels have not been affixed due to weighing errors are collected by the operator and placed on the in-feed conveyor 11a of the weighing and pricing apparatus 1 again. At this time, the operator should place the products one by one on the infeed conveyor 11a so that the products are reliably conveyed one by one onto the scale conveyor 11b. At this time, the operator may change the setting to the effect that the determination unit does not perform determination on the allowable value setting screen G2 described later, and then place the product.

According to such a configuration, since at least the upper limit of the product weight is defined by a percentage rather than a weight value, the upper limit can be automatically set based on the weight of the sample product. Therefore, even in a usage mode in which the reference value of the product to be weighed varies greatly depending on the delivery destination store, work day, or worker, compared to the configuration in which the allowable range is set for each product, The upper limit can be easily set by simply running a sample product before work. For example, if two commodities are erroneously transported on the scale conveyor 11b, the value will be approximately twice the reference value. can. In order to prevent erroneous weighing of two products, the upper limit ratio is preferably set to be less than twice the reference value.

In addition, according to the configuration in which the lower limit of the product weight is specified by a percentage and the lower limit value is automatically set based on the weight of the sample product, it is possible to reliably detect when only the tray is transported by mistake.

●Screen example FIG. 4 is an example of the weighing issuance screen G1 displayed on the liquid crystal display 12a. As shown in the figure, the weighing issuance screen G1 displays a weighing value column G11, a product information column G12, an issuance operation column G13, a status display column G14, and the like. In addition, information such as the total number of labels issued, the number of labels issued, the issuance method, the identification information of the container, the prescribed content volume, the upper and lower limits of the weight of the content volume, etc. In addition, a setting field G15 is provided for accepting changes in these settings.

The measured value column G11 has a tare weight column G11a, a measured value column G11b, a unit price column G11c, and a price column G11d.

The tare weight column G11a displays the value of the tare weight referred to in the tare subtraction process. The measured value column G11b displays a value obtained by subtracting the tare from the value measured by the scale conveyor 11b. Further, when the weighed value after tare subtraction is displayed in the weighed value column G11b, a display indicating that the weighed value column G11b has been tare is made.

When a zero reset process is input through the touch panel 12b or the switch group 18, "0" is displayed in the tare weight field G11a and the measurement value field G11b.

The unit price column G11c is a column for displaying the unit price of the called product, that is, the price per unit weight. Here, the price per 100g is displayed. The price column G11d displays the price of the product calculated based on the unit price of the product and the measured value.

The product information column G12 displays product information such as product name, delivery service, product number, store number, expiration date, and production date.

Product information for products to be weighted can be retrieved by directly entering the product number, selecting by referring to a pre-stored product list, recalling product numbers before and after the currently displayed product, and recalling with a preset key. , and so on. In addition, product classifications are also stored and may be called from the product classification or small classification. Furthermore, by selecting a group (also referred to as "line") registered in advance according to various sale periods, it may be possible to call up products belonging to the line.

Furthermore, product information may be retrieved from a history of products for which pricing and labeling have been performed. Here, by selecting a date from the date selection screen, it may be possible to extract the product name whose final pricing date is the selected date. At this time, by pressing an icon "today's work" separately from the date selection screen, the history of the products for which labels were issued on the day may be displayed. Furthermore, it may be called up by searching by phrase. Furthermore, the products with the highest number of label issues or the number of product information calls may be displayed in descending order of the number of times, and the product may be selected from among the displayed products. Furthermore, by scanning the bar code of the product, it may be possible to call up the information of the product.

The weighing issuance screen G1 in FIG. 4 shows a state where label issuance is stopped, and is in a state where key operations are accepted. When each area of the setting field G15 is pressed, the setting screen corresponding to the contents displayed in the area is displayed. In the setting field G15, a "maximum weight" field G15a and a "minimum weight" field G15b are displayed on the same screen. In addition, the "upper limit of weight" column G15a indicates that the upper limit to the reference value is "140%" as a percentage, and the "lower limit of weight" column G15b indicates that the upper limit to the reference value is "50%" as a percentage. is displayed. When the "maximum weight" field G15a or the "minimum weight" field G15b is pressed, the screen transitions to FIG. 5(a).

5(a) and 5(b) are diagrams showing an example of a permissible value setting screen G2 displayed on the weighing device 1. FIG. As shown in the figure, the allowable value setting screen G2 mainly displays a setting button G2a, a weight value display area G2b, a change selection area G2c, an enter button G2d, a clear button G2e, and a cancel button G2f. When the weight of the sample product is acquired, the liquid crystal display 12a displays the upper limit and lower limit of the allowable value on the same screen, that is, in the weight value display area G2b. According to this configuration, compared to the mode in which the allowable range is set for each product, it is possible to easily set the allowable range even when the serving amount of the same product varies depending on the work content, work day, or worker. can be prevented.
The upper limit value and lower limit value displayed in the weight value display area G2b are automatically displayed as values calculated from the weight and ratio of the sample product. , it is also possible to change the upper limit value and the lower limit value arbitrarily.

Note that FIG. 9 is a diagram showing another example of the allowable value setting screen G102. In the figure, next to the weight value display area G2b, there is displayed a ratio display area G2g that displays the allowable range of the product weight as a ratio of the product weight to the reference value. According to this configuration, the numerical value referred to for calculating the allowable value is clearly indicated, so that it is easy for the operator to understand. In addition, the ratio display area G2g may be configured so that the ratio set uniformly, not for each product, is displayed for reference, and the ratio cannot be changed on the allowable value setting screen G102. The ratio may be changed on the allowable value setting screen G102, and an arbitrary ratio may be set for the displayed product (here vermicelli salad).

The setting button G2a is an operator that accepts a selection as to whether or not the determination unit determines the product weight via input to the touch panel 12b. The setting button G2a is an example of input means. The setting button G2a is composed of two lamp displays arranged side by side. For example, a green lamp is displayed on the left side and a red lamp is displayed on the right side. FIG. 5(a) shows a screen in which the judging section is selected to make a judgment, the green lamp of the setting button G2a is lit, and "checked" is displayed above it. FIG. 5(b) shows a screen in which the judging section selects not to make a judgment, the red lamp of the setting button G2a is lit, and "no check" is displayed above it. As shown in FIG. 6, when it is selected in the setting button G2a that the judging unit does not judge the product weight, the upper limit value and the lower limit value of the weight are set to "unchecked" in the weighing issuing screen G1. is displayed.

The change selection area G2c shown in FIG. 5 is an area for receiving a selection of whether the change displayed in the setting button G2a and the weight value display area G2b is to be changed only this time or to be changed in subsequent operations.

●Procedure for Weighing a Sample Item An example of the flow for weighing a sample item and obtaining the reference value for the product weight and the allowable value for the product weight will be described. For example, when a product is called on the weighing issuance screen G1, the weighing and pricing device 1 causes the liquid crystal display 12a to display a message prompting the weighing of the sample product. Also, the trigger may be something other than product calling, such as operating a button for setting the allowable range. Each of the product call and button operation on the weighing issuance screen G1 is an example of a predetermined operation, but each is an example. Specifically, the liquid crystal display 12a is caused to display the text "Weight range is set. Please pass one item of average weight." Also, at this time, the conveyor 11 may start operating. When an operator places a sample product on the infeed conveyor 11 a , the sample product is conveyed to the scale conveyor 11 b and weighed by the weighing section 30 . Note that the operator may place the sample product directly on the scale conveyor 11b. When the sample product is weighed, at least the upper limit of product weight is displayed on the liquid crystal display 12a. For example, the liquid crystal display 12a displays a message such as "The weight of the product is 300 g. Set the upper limit to 420 g and the lower limit to 150 g." Also, a ledger label is issued to be attached to the work ledger for recording the details of the work. According to this configuration, the sample product is weighed when the ledger label required for work management is issued, which is efficient.

For the ledger label, for example, part or all of the content of the product label attached to the product is printed, and an indication that it is for the ledger is printed. Further, the ledger label may be printed with a sample product weight as a reference value for the product weight, as well as the upper limit and lower limit of the product weight. According to this configuration, the permissible range of product weight, that is, the permissible upper limit and lower limit can be easily recorded in the work ledger.

●Operation when Setting Tare Here, the operation when performing zero reset processing of the weighing value measured by the scale conveyor 11b will be described. The weighing and marking device 1 periodically checks the state of the zero point during the label issuance process, and if there is a deviation of a predetermined value or more, interrupts the label issuance process and issues a zero reset processing command to the operator. Issue a warning prompting you to

When receiving a zero reset processing command via the switch group 18 or the touch panel 12b, the weighing apparatus 1 stops the operation of the conveyor 11. FIG. The liquid crystal display 12a displays a message "The tare is cleared for zero reset and the conveyor is stopped." After the above message is displayed for a predetermined period of time, the weighing unit 30 performs zero reset processing while the conveyor 11, at least the scale conveyor 11b, is stopped. Note that the liquid crystal display 12a may display a message prompting another zero reset processing command when the weighing unit 30 fails in the zero reset processing. If the zero reset process fails and the conveyor operation switch 18d is pressed while the tare weight has not been reset, a warning may be displayed on the liquid crystal display 12a.

FIG. 7 is an example of a pop-up screen G3 displayed together with the zero reset process. As shown in the figure, the pop-up screen G3 displays that the tare has been cleared because the zero reset has been performed, and that the tare will be reset. Further, when the tare weight is reset, it is displayed that the conveyor 11 will operate. The pop-up screen G3 also displays the previous value of the tare weight ("7" in the figure). When the previous value is to be used as the tare weight for subsequent weighing, guidance is displayed to press the "Confirm" button. When the tare weight is reset by, for example, pressing the "Confirm" button, the weighing device 1 restarts the operation of the conveyor 11 .

As another aspect, instead of inputting the tare weight or referring to the previous value, the actual weight of the tare may be measured. In this case, the message "The conveyor will be stopped to set the tare weight" is displayed for a predetermined time, and the conveyor 11 is stopped after or at the same time as the display. A message is then displayed that reads, "Place tray on scale and press confirm button." When the tray is placed on the scale conveyor 11b and the weighing is successful, a message is displayed saying "Tare weight setting is completed. Conveyor starts. Please remove anything on the scale." When the operator removes the tray and presses the confirmation button, the tare weight is reset and the conveyor 11 starts operating. Also, if the weighing of the tray fails, a message prompting the user to place the tray again and press the confirm button is displayed.

When the conveyor 11, particularly the scale conveyor 11b that conveys the products on the load cell 30a, is in operation, the load cell 30a is unstable, making accurate zero resetting difficult. Therefore, it was necessary to stop the conveyor 11 before the zero reset process and restart the operation of the conveyor 11 after the zero reset process, but this operation was troublesome for the operator. On the other hand, according to this configuration, the conveyor 11 is automatically stopped in conjunction with the zero reset operation, so the zero reset process can be easily performed.

When the liquid crystal display 12a receives an input indicating that the zero reset is to be performed, and the conveyor 11 is stopped, the liquid crystal display 12a displays a message "The tare is cleared for zero reset." Also, in this case, the conveyor 11 is not operated after the tare is reset.

Here, when the operator presses the "Confirm" button via the switch group 18 or the touch panel 12b, the input control unit accepts this input and determines the reference value of the tare weight. According to such a configuration, the tare weight can be easily set even after the tare is cleared by zero reset. This reference value is displayed in the tare weight field G11a on the weighing issuance screen G1.

●Processing flow A processing flow for calculating the allowable range of product weight will be described with reference to Fig. 8(a). As shown in the figure, first, the weight of the sample product is measured (step S11). Also, the allowable weight ratio is acquired (step S12). Steps S11 and S12 may be performed in any order and may be performed simultaneously. Next, the upper limit and lower limit of the product weight are calculated based on the weight of the sample product and the allowable weight ratio (step S13).

More specifically, in step S12, the ratio of the product weight to the upper limit or lower limit is acquired, and in step S13, based on the weight of the sample product and the ratio of the upper limit or lower limit, the product weight Calculate the upper limit or lower limit of Next, the upper limit value and the lower limit value are displayed on the same screen (step S14).

Next, with reference to FIG. 8B, a processing flow for judging acceptance/rejection of a product based on the allowable range of product weight will be described. As shown in the figure, first, the weight of the product is measured (step S21). Determine whether the product weight is within the allowable range, that is, smaller than the upper limit and larger than the lower limit (step S22), and if it is within the allowable range, issue a label (step S23) and attach it to the product ( step S24). In step S22, if the product weight exceeds the allowable range, label issuance is prohibited (step S25).

According to the weighing value assigning apparatus according to the present embodiment, the weight of the sample product is used as a reference value, and the upper limit and lower limit of the product are determined based on the ratio to the reference value. Even if the reference value changes greatly due to factors such as the above, erroneous weighing can be prevented.

Overview of Embodiments The present invention relates to a weighing device and a control program for the weighing device.

When issuing a label to be affixed to a weighed product whose price is determined according to weight (also called "non-fixed measure product"), the product is priced based on the weight value of the product and the price data per unit weight. , weighing devices for printing on labels are known.

Therefore, there is a need for a technology that reliably prevents pricing based on erroneous weighing results (for example, Japanese Patent Application Laid-Open No. 2009-036554).

The aforementioned document discloses a weighing management system in which upper and lower limits are set for the weight of products to be served.

In the system described above, upper and lower weight limits are set for each product type. However, even for products of the same type, the serving amount per pack may vary depending on the day of work, the worker, or the production volume of the day, and may not be uniform.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to prevent erroneous weighing even when the weight of a product to be weighed changes significantly.

In order to achieve the above object, a weighing and value assigning device according to one aspect of the present invention includes weighing means for weighing a product or a sample product, a uniformly set weight upper limit ratio, and weighing by the weighing means. and display means for displaying an upper limit of the weight of the product calculated based on the weight of the sample product.

The display means displays a message prompting the weighing of the sample product in response to a predetermined operation, and the product is calculated based on the weight of the sample product weighed when the message is displayed. It is also possible to display the upper limit of the weight of

It further comprises label issuing means for issuing a label printed with the price of the product calculated based on the weight of the product and price data per unit weight of the product, wherein the label issuing means is weighed by the weighing means. The label may not be issued if the weight of the product placed exceeds the upper limit.

determination means for determining whether or not the label issuing means issues the label based on the weight of the product and the upper limit; and input means for receiving a selection as to whether or not the determination means makes the determination. , may be further provided.

The display means may display a numerical value calculated based on the weight of the sample product and the lower limit ratio to the weight of the product as the lower limit value of the weight.

The display means may display the upper limit value and the lower limit value on the same screen.

The apparatus may further comprise transport means for transporting the product on the weighing means, and stop the operation of the transport means when receiving a zero reset processing command for the weighing means.

In order to achieve the above object, a control program for a weighing and pricing apparatus according to another aspect of the present invention includes a weighing command for weighing a product or a sample product, a uniformly set weight upper limit ratio, and the weighing A computer is caused to execute a display command for displaying an upper limit of the weight of the product calculated based on the weight of the sample product weighed by the command.

According to the weighing value assigning device of the present invention, it is possible to prevent erroneous weighing even when the weight of the product to be weighed changes significantly.

1 weighing device 11 conveyor 11b scale conveyor 12 display means 15 labeler G1 weighing issuing screen G2 allowable value setting screen

Claims (8)

Weighing means for weighing the product or sample product;
display means for displaying the upper limit of the weight of the product, which is calculated based on a uniformly set upper limit ratio of the weight and the weight of the sample product weighed by the weighing means;
comprising
Weighing device.
The display means displays a message prompting the weighing of the sample product in response to a predetermined operation, and the product is calculated based on the weight of the sample product weighed when the message is displayed. display the weight limit of
2. The weighing device according to claim 1.
further comprising label issuing means for issuing a label printed with the price of the product calculated based on the weight of the product and price data per unit weight of the product;
The label issuing means does not issue the label when the weight of the product weighed by the weighing means exceeds the upper limit.
3. The weighing device according to claim 1 or 2.
determination means for determining whether or not the label issuing means issues the label based on the weight of the product and the upper limit; and input means for receiving a selection as to whether or not the determination means makes the determination. , further comprising
4. The weighing device according to claim 3.
The display means displays a numerical value calculated based on the weight of the sample product and the lower limit ratio to the weight of the product as the lower limit value of the weight.
5. The weighing device according to any one of claims 1 to 4.
the display means displays the upper limit value and the lower limit value on the same screen;
6. The weighing device according to claim 5.
further comprising a conveying means for conveying the product on the weighing means;
When a zero reset processing command for the weighing means is received, the operation of the conveying means is stopped;
7. Apparatus according to any one of claims 1 to 6.
Weighing instructions for weighing goods or sample goods;
a display command for displaying the upper limit of the weight of the product, which is calculated based on the uniformly set upper limit ratio of the weight and the weight of the sample product weighed by the weighing command;
cause the computer to run
A control program for weighing devices.

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