JPH08145773A - Fixed quantity weighing method and device therefor - Google Patents

Abstract

PURPOSE: To provide a fixed quantity weighing method and a device therefor in which the frequency of holding a matter to be weighed such as a fruit easy to damage by a hand and the mutual contact frequency of the matters to be weighed are reduced by utilizing the characteristic of a subtraction type weighing instrument, and a liquid or powder can be easily taken out to perform the fixed quantity weighing in a short weighing time while ensuring the quality. CONSTITUTION: In a subtraction type weighing instrument formed of a weighing part 1 and a control and instruction part 2, the control and instruction part 2 has an operation key part 8 formed of a mode switch and ten keys. The mode switch has a fixed quantity range mode key for setting, displaying and storing a fixed quantity range, a total weight mode key for weighing a matter 20 to be weighed put on the weighing part together with a vessel 21 to display and store the total weight, and a fixed quantity mode key for displaying, on a display part 5, the weight of the matter to be weighted taken out from the matter to be weighed on the weighing part by the subtraction from the total weight by an arithmetic control part in the control and instruction part. A fixed quantity judging part 6 for comparing the stored fixed quantity range with the weight of the taken matter to be measured to display a light quantity, proper quantity or excessive quantity is provided, so that a vessel 22 is made to a fixed quantity while the matter to be weighed in taken in the weighing part to observe whether it is proper or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quantitative weighing method and apparatus for taking out a large number of objects to be weighed from a container on a weighing machine and putting them in another container to quantify the container. .

[0002]

2. Description of the Related Art Conventionally, in the case of manually quantifying, for example, a piece of fruit having a variation in weight, an empty container is placed on the weigher and the tare amount is reduced to instruct the weigher. Value 0
After that, take out the objects to be weighed from a large number of baskets etc. and put them in the above empty container to see the indicated value and quantify, but the problem here is that near Then, the final adjustment is to put the object to be weighed out from the basket, etc. on the container on the scale, determine whether it is within the fixed amount, and if it is out of the fixed range, return the object to be weighed to the basket. Another object to be weighed is again taken out of the basket and placed on the container on the weighing machine to determine whether it is within the fixed amount. Repeat this work 1
Although the fixed quantity work is finished, the number of times of loading and unloading of the object to be weighed at the time of final adjustment naturally increases as the fixed quantity range becomes narrower.

Further, a so-called subtraction calculation formula is used in which a container containing a large number of objects to be weighed is placed on a weighing device, and the objects to be weighed are taken out from the weighing device to display the weight of the taken-out objects to be weighed. A scale is disclosed in Japanese Patent Laid-Open No. 58-198732. However, here, only the weight or price of the taken-out object to be weighed is displayed and printed by a subtraction formula, and the function of quantifying the object to be weighed out is not disclosed.

Further, as described above, by weighing an empty container by placing it on a scale, the weight of the object to be weighed in the container is multiplied by the unit price to display the price, and the tax amount is calculated. Displaying the amount of money added to the above-mentioned price means that the applicant has previously filed Japanese Patent Publication No. 50-11260 and Japanese Patent Laid-Open No. 64-3102.
2 and JP-A-64-57128. However, here, by simply displaying and printing the amount of money including the price and tax on the weigher, a fixed price is set and the quantitative equivalent to that price is set, or the quantitative rate considering the profit rate against the purchase amount is added. Functions such as weighing are not disclosed.

[0005]

However, as described above, in the method in which an object to be weighed is put into an empty container on the scale to quantify the object, the object to be weighed is often placed on and off, resulting in poor workability. Not only that, but in the case of an object to be weighed that is easily painful, there is a problem that the number of times of grasping by hand and the number of times the objects to be weighed come into contact with each other are increased, resulting in scratches. Therefore, an object of the present invention is to realize a quantitative weighing method in which the number of times of loading and unloading of an object to be weighed is minimized by making the most of the characteristics of the subtraction type scale. Set the price of the object to be weighed,
The purpose is to realize a method of weighing a fixed weight corresponding to the price as an additional function.

[0006]

In order to achieve the above-mentioned object, the present invention is a subtraction type weighing machine comprising a weighing section and a control / instruction section. Quantitative range mode key for setting / displaying / storing the quantitative range for mode switching, and a total amount that can display / store the total weight of a large number of objects to be weighed on the weighing section. A mode key and a quantitative mode key for displaying the weight of the object taken out of the object on the weighing section by subtracting the weight from the total amount by the arithmetic control section provided in the control / instruction section are further provided. The control / instruction section is equipped with a quantitative determination display section that can display the weight, proper quantity, and excess quantity by comparing the set and stored quantitative range with the weight of the sample to be retrieved by the calculation control section. Weighing item , 1 from the set determination of the objects to be weighed
Take out a plurality of pieces until the value is close to the weight value obtained by subtracting the average weight value of each piece, then pick up the objects to be weighed one by one until the appropriate amount is displayed on the quantitative determination display section, and repeat the return, The feature is that it is put into a container to be quantified.

As additional means, the purchase unit price, the profit rate with respect to the purchase amount, and 1 are added to the mode switching of the operation key section.
Providing a purchase unit price mode key, a profit rate mode key and a sale price per bag mode key that can set, display, and store the sale price per bag respectively, and after setting the profit rate for the above purchase unit price and purchase amount, request By setting the selling price per bag, the quantitative reference value of one bag corresponding to the selling price is automatically calculated by the arithmetic control unit, and the quantitative range is set by setting the quantitative range width in the quantitative range mode. Is set.

Further, a bag number mode key capable of setting, displaying and storing a desired number of bags corresponding to a selling price per bag for mode switching of the operation key portion, and a profit amount for the sales amount are calculated. By providing a profit amount mode key that can be displayed and setting the number of bags for each selling price with the number of bags mode key, when the number of quantitative weighing bags corresponding to the selling price per bag reaches the set value, the control / instruction is made. An alarm is issued from a predetermined amount alarm unit provided in the department, and at the same time, the total sales amount corresponding to the number of bags is calculated and displayed by the calculation control, and the total sales amount is input by pressing the profit amount mode key. The feature is that the profit amount corresponding to the amount is calculated and displayed by the calculation control unit.

[0009]

According to the present invention, a large number of objects to be weighed in a container are placed on the weighing unit of the subtraction type weighing device, and the total amount including the container is weighed and stored. On the other hand, by setting the fixed amount range of the object to be weighed in another container, and taking out the object to be weighed on the scale, the weight of the object to be weighed including the remaining container taken out from the stored total amount. Is displayed and the weight of the object to be weighed out is displayed. The weight is compared with the previously set and stored quantitative range, and one of lightweight, appropriate amount, and excessive amount is displayed on the quantitative determination display portion. Therefore, the object to be weighed on the scale is
Remove a plurality of each from the set quantity until the value is close to the weight value obtained by subtracting the average weight value from the set quantity, put them in the other containers mentioned above, and then on the scale while watching the display of the quantity judgment display section. Repeatedly picking up and returning one of the objects to be weighed, and when it reaches an appropriate amount, put it into the other container described above, and it is confirmed that the object to be weighed that has been quantitatively weighed is contained in the container. Become.

According to the addition means, by setting the purchase unit price, the profit rate with respect to the purchase amount, and the selling price per bag, the quantitative weight corresponding to the desired selling price per bag is calculated, and the quantitative range is obtained. By setting the width, the quantitative range corresponding to the selling price of one bag can be easily set. In addition to the above 1
By setting a desired number of bags for each sale price of the bags, an alarm is issued when the number of bags quantitatively weighed reaches the set number, and therefore the weighing work of the quantitative value may be stopped. Also, the total sales amount at that time can be displayed, and the profit amount corresponding to this total sales amount is also calculated and displayed.

[0011]

EXAMPLE A first example is shown in FIGS. FIG. 1A is a diagram showing an appearance and a weighing state of the weighing device, and FIG. 1B is a diagram showing a display in a weighing process. FIG. 2 is a block diagram showing the configuration of a weigher that realizes the present invention, and FIG.
3 is a detailed view of the operation key unit of FIG. Further, FIG. 3B is a display example at the time of mode switching of FIG. 3A. FIG. 4 is a flow chart of this embodiment. In these figures, 1 is a weighing unit of a weigher that puts an object to be weighed 20 in a container 21 such as a basket and weighs it, and 2 is a weighing signal from the weighing unit to indicate a weight value. It is a control / instruction unit for performing input / display / storage of setting values according to modes. The main parts described below are built in this control / instruction part. 3 is an A / D converter for converting the analog weighing signal output from the weighing unit 1 into a digital value, 4 is a digital signal output from the A / D converter 3, and is either set or previously weighed The calculation control unit 5 performs a comparison calculation with the calculated value and controls the operations thereof. The display unit 5 displays the weight value and the set value processed by the calculation control unit 4. The reference numeral 6 indicates the set quantitative range and the weight. Quantitative discrimination display lamp for comparing and displaying the weight of the measured objects to determine whether or not it is an appropriate amount, 7 is a power supply unit, 8 is a numeric keypad and operation key unit for mode switching, and 9 is a set value and a weight value. A storage unit for storing, 10 is a predetermined amount warning unit such as a lamp and a buzzer for notifying that the set target fixed number of times has been achieved, 11 is an input / output interface with the outside, and these are the control / instruction units. Make up 2. Reference numeral 22 is a container for containing the object to be weighed.

Therefore, the weighing operation will be described step by step with reference to these drawings. First, the power supply 7 is turned on and the display on the display unit 5 becomes 0.
After confirming that, in step S1, the mode switching of the operation key unit 8 is set to the quantitative range, and in step S2, for example, 3.00 to 3.02 kg is set by the numeric keypad or the like, and as shown in 1 of FIG. 1B in step S3. The display unit 5 is displayed on the screen, and at the same time, the set value is stored in the storage unit 9 in step S4. Next, after the total amount of mode switching is set in step S5, a container 21 such as a basket containing a large number of objects to be weighed 20 is placed on the weighing unit 1, and in step S6, the total amount W0 of a large number of objects to be weighed including the container is calculated. It is assumed that the weight is measured and the weight becomes, for example, 24.36 kg as shown by 2 in FIG. 1B in step S7. Therefore, after placing the container 22 for which the desired fixed amount is set on the floor, the mode is switched to the fixed amount in step S8 to display 0.0 in step S9 as shown in 3 of FIG. 1B.
At the same time, the total weight W0 previously weighed in step S10 is stored as 24.36 kg in the storage unit 9 and the subtractive quantitative weighing can be performed. Then step S
At 11, a plurality of objects 20 to be weighed in the container 21 on the weighing unit are taken out one by one and placed in the container 22. At this time, in step S12, the weight W1 of the object to be weighed remaining on the weighing section is subtracted from the previously stored total amount W0, and in step S13, the weight W2 of the object to be weighed is displayed on the display unit 5. That is, every time the object to be weighed is taken out, the total weight of the container 21 and the object to be weighed 20 is weighed. For example, if the total weight is 21.6 kg, the weighed value 24.36 kg stored in the storage unit 9 is read out. The above-mentioned weight 21.6 kg currently loaded on the weighing unit 1 is subtracted from the value by the arithmetic control unit 4, and 2.76 kg is displayed on the display unit 5 as shown at 4 in FIG. 1B.
At the same time, the quantitative range of 3.0 previously set in step S14
0 to 3.02 kg is read from the storage unit, and the weight of 2.76 kg loaded into the container 22 is compared by the calculation control unit 4 and the appropriateness is displayed on the quantitative determination display lamp 6 in step S15. In this case, since it is less than the fixed amount range, a lightweight lamp is turned on. This work is performed by subtracting a plurality of objects to be weighed at one time until the amount is close to the fixed quantity, taking out the weight while checking the displayed weight value, and when the average weight of one object to be weighed becomes a value subtracted from the fixed quantity range. Then, one object 20 to be weighed is picked up from the container 21 placed on the weighing unit 1 and it is confirmed whether or not it is a fixed amount. For example, the item to be weighed is 280g.
Then, the weight of 2.76 kg that has been charged into the container 22 is added to 3.04 kg as shown in 5 of FIG. 1B. At the same time, since the quantitative range is exceeded, the quantitative determination display lamp 6 lights up an excessive amount of lamp. Therefore, the object to be weighed 20 just picked up is returned to the container 21, and another object to be weighed is picked up. At this time, for example, if the weight is 250 g, the weight is added to the already-loaded weight of 2.76 kg, and as shown by 6 in FIG. 1B, the display unit 5 displays 3.01 kg, which is within the quantitative range. An appropriate amount of light is turned on as the display lamp 6. This process repeats S11 to S14 until the result of step S14 is YES in the flowchart, and if YES, the last one object to be weighed picked up in step S16 is put into the container 22 and the quantification is performed once. Heavy work ends.

When the same quantitative weighing as described above is repeated, steps S5 to S16 may be repeated, and when it is desired to change the quantitative range, the procedure starts from step S1. In this weighing operation, the object to be weighed on the weighing section is mainly taken out manually, but it may be taken out by a robot. In this case, if YES is obtained in step S14, the robot take-out operation may be stopped and restarted by the signal that the container 22 that has become a fixed amount has been carried out. Although the quantitative determination display unit 6 is a lamp display, it may be an analog display such as a bar display or a voice with a different tone color. Further, the quantitative range may be set by the reference value and%. Further, the display unit 5 for the quantitative range, the total amount, and the weight taken out is one, but it may be divided into each display unit. In the mode switching of the operation key unit 8 shown in FIG. 3, by pressing a key of each setting mode, the key may be turned on or displayed by another lamp. In the above, take out what should be quantified from the many objects to be weighed on the weighing unit,
At the end, one piece was taken out and quantified, but in the case of liquid, powder, etc., it may be taken up and returned to an appropriate amount if it is excessive.

A second embodiment is shown in FIGS. 3 to 5, and FIG. 5 is a flow chart of this embodiment. In the above-described first embodiment, when the quantity is set as one bag, the unit price when the object to be weighed is purchased, the desired profit rate with respect to the purchase amount, and the desired selling price per bag are set to 1 Calculate the weight per bag and use the weight value as the standard value for the quantitative range 1
You may want to carry out the quantitative weighing work once. In this case, first, in step S21, the mode change of the operation key unit 8 is set as the purchase unit price, and in step S22, for example, the purchase unit price a is set to 200 yen / kg by the ten-key pad or the like, and the step S22 is set.
At 23, the display unit 5 is displayed as shown at 1 in FIG. 3B, and at the same time, the set value is stored in the storage unit 9 at step S24. Next, when it is desired to set the profit ratio β to the purchase amount to, for example, 20%, the mode change is set to the profit ratio in step S25, the above profit ratio is set in step S26, and the display unit is displayed in step S27 as indicated by 2 in FIG. 3B. Make sure that 5. At the same time, in step S28, this set value is stored in the storage unit 9. Now suppose that the selling price Y per bag is 600
There are 3 types of yen, 900 yen, 1500 yen, and 1 bag 60
If you want to weigh a fixed amount of 0 yen, select the mode change to the selling price per bag in step S29, and then in step S3.
When the price of 600 yen is input at 0, the display shown at 3 in FIG. 3B is made at step S31. At the same time, the value is stored in the storage unit 9 in step S32. Therefore, if the mode switching is set to the quantitative range in step S33, step S3
In 4, the quantitative reference value WS per bag is read out, and the stored unit price a, profit rate β and selling price Y per bag are read out, respectively, and the arithmetic control unit 4 writes WS = Y / a × (1+
β) is calculated. In this example, WS = 600 yen / 200 yen × (1 + 0.2) = 600 yen / 240 yen =
It becomes 2.5 kg, and by inputting +0.02 kg and −0 to the quantitative range width with a ten key or the like in step S35, a display as shown in 4 of FIG. 3B is displayed in step S36. At the same time, the value is stored in the storage unit 9 in step S37. In the flowchart, the upper limit is expressed as HWSH and the lower limit is expressed as LWSL. In this way, since the quantitative range corresponding to the selling price Y per bag is set, the quantitative weighing operation proceeds to step S5 of FIG. 4 and thereafter, the procedure described in the first embodiment is performed. Similarly, the selling price per bag is 90
When 0 yen is desired, the quantitative reference value WS is 3.75 kg, and when 1500 yen, it is 6.25 kg. Although the sales price of one quantitative weighing is set as one bag, it is not limited to the bag.

A third embodiment is shown in FIGS. 3 to 6, and FIG. 6 is a flow chart of this embodiment. In the second embodiment described above, it may be desired to weigh the desired number of bags for each selling price. In this case, after setting the selling price per bag in step S30 of FIG. 5, the mode is changed to the number of bags in step S41, and the number of bags n is input in step S42 to display the number of bags in step S43. Step S
The value is stored in the storage unit 9 at 44. Next, step S33 to step S35 shown in FIG. 5 and step S5 to step S16 shown in FIG. 4 may be sequentially executed. Each time one quantitative weighing operation is completed, the number of times is added by the arithmetic control unit 4, and if the number of times N of weighing reaches the number of times n set in step S45, the target is given by the predetermined amount warning unit 10 in step S46. You will be informed that you have reached the number of times. At that time, since it may be desired to know the total sales amount of the quantitatively weighed bags and the total profit amount corresponding to the sales amount, step S47.
Then, the total sales amount Z is calculated by the calculation control unit 4 as Z = Y × n based on the above-mentioned number of times n and the above-mentioned set selling price Y per bag, and the value is displayed on the display unit 5 in step 48. It In step S49, the mode switching is used as the profit amount, and in step S50, the total profit amount A corresponding to the total sales amount is calculated by the calculation control unit 4 as A = WS × n × a × β, and the value is calculated in step S51. Is displayed on the display unit 5. For example, if the above numerical values are applied and one bag with a selling price of 600 yen is to be weighed for 100 bags, the total sales amount Z is 600 yen × 100 = 6 as shown in 5 of FIG. 3B.
It will be 10,000 yen. Further, the total profit amount A corresponding to the total sales amount at that time is 2.5 kg × 100 as shown in 6 of FIG.
× 200 yen × 0.2 = 10,000 yen.

[0016]

According to the present invention, the weight of the object to be weighed taken out from the large number of objects to be weighed placed on the scale is displayed by subtraction and compared with the quantitative set value to determine whether it is appropriate or not. Therefore, the suitability can be determined simply by lifting the object to be weighed in the container placed on the scale, so the number of times of touching is reduced in the case of a particularly fragile object to be weighed. This has the effect of reducing the burden on the customer and ensuring the quality of the object to be weighed. Further, in the case of liquid or powder, even if it is taken up too much on the weighing machine, it can be easily returned to an appropriate amount, so that the effect is further great. Furthermore, according to the addition means, by setting the purchase unit price, the desired profit rate corresponding to the purchase amount, the desired sales amount per quantitative weighing, etc., the quantitative value corresponding to the selling price is automatically obtained. By setting the number of times weighed for each desired sales amount, the total selling price for each sales amount and the corresponding total profit amount can be automatically calculated and displayed, which is convenient for use. .

[Brief description of drawings]

FIG. 1 is an external view of a weighing device according to the present invention, a diagram showing a weighing state, and a diagram showing a display in a weighing process.

FIG. 2 is a block diagram showing a configuration of a weighing device that realizes the present invention.

3A and 3B are a detailed view A of an operation key unit and a display example B when switching modes.

FIG. 4 is a flowchart of the first embodiment of the present invention.

FIG. 5 is a flowchart of the second embodiment of the present invention.

FIG. 6 is a flowchart of the third embodiment of the present invention.

[Explanation of symbols]

 1 Weighing unit of weighing device 2 Control / instruction unit of weighing device 3 A / D converter 4 Calculation control unit 5 Display unit 6 Quantitative determination display lamp 7 Power supply unit 8 Operation key unit 9 Storage unit 10 Predetermined amount alarm unit 11 Input / output interface 20 Weighing object 21 Container 22 Container to be quantified

Claims (6)

[Claims] 1. A container containing a large number of objects to be weighed is placed on a weighing unit of a subtraction type weighing device, and a fixed amount of the container is determined by an operation key unit provided in the control / instruction unit of the weighing device. Set the range, and the indicator display of the weigher shows 1
Take out the objects to be weighed on the weighing unit one by one until they are close to the weight value obtained by subtracting the average weight value of each piece, and put them into the container to be quantified. Quantitative weighing is performed by picking up each piece and repeating the weight value on the display section of the weigher and the discrimination display section until the appropriate quantity is reached, and then putting one of the appropriate quantity into the above-mentioned container for quantitative determination. Quantitative weighing method characterized by. 2. A subtraction type weighing device comprising a weighing unit and a control / instruction unit, wherein a fixed amount range is displayed in a fixed amount range mode by switching a mode of an operation key unit, and a large number of units mounted on the measuring unit in a total amount mode are displayed. It has a display unit that displays the total amount of the objects to be weighed and displays the weights of the plurality of objects to be weighed extracted from the total amount in the quantitative mode, a numeric keypad, and a mode switching key that can set each mode. It is characterized by comprising an operation key portion and a quantitative determination display portion for comparing the weights of a plurality of objects to be weighed that have been set and stored with the quantitative determination display portion for displaying a light weight, an appropriate amount, or an excessive amount. Quantitative weighing device. 3. The quantitative range is set by setting a purchase unit price, a profit rate against the purchase amount, and a desired selling price per fixed quantity by the operation key section provided in the control / instruction section of the weighing machine. The quantitative weighing method according to claim 1, wherein the calculation is automatically performed by an arithmetic control unit in the control / instruction unit. 4. A purchase unit price mode key for inputting a purchase unit price to a mode switching key of the operation key section, a profit ratio mode key for inputting a profit ratio to a purchase amount, and 1
A selling price mode key per bag for inputting a desired selling amount per time is provided, and a quantitative range corresponding to the selling price is automatically set by inputting those numerical values. Item 2. Quantitative weighing device. 5. The number of bags weighed quantitatively is set by setting the desired selling price with the operation key portion provided in the control / instruction unit of the weighing device, and then setting the number of bags for each desired selling price. When the value is reached, an alarm is issued and the total sales amount corresponding to the set number of bags is displayed.Furthermore, by selecting the profit amount mode key by switching the mode of the operation key part, the total profit amount corresponding to the above total sales amount is displayed. The quantitative weighing method according to claim 3, wherein the method is displayed. 6. A bag number mode key for inputting the number of bags for each selling price to a mode switching key of the operation key section, and a profit for instructing to display the total profit amount corresponding to the total sales amount of the above-mentioned number of bags. An amount mode key is provided, and when the number of bags specified is entered, an alarm is issued when the number of quantitative weighing bags reaches the set number of bags, and the mode changeover key is set to the profit amount to correspond to the above total sales amount. 5. The quantitative weighing device according to claim 4, wherein the total profit amount to be displayed is displayed.