JP2546961B2 - Electronic weighing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic weighing device suitable for use in unloading work of objects to be weighed.

[0002]

2. Description of the Related Art When serving a side dish such as a bento, weighing is sometimes performed in order to make the amount of serving uniform. In this case, after placing the side dish on the weighing plate as in normal weighing and weighing the prescribed amount, the side dish after weighing is taken off the weighing plate and placed on a lunch box, etc. It requires loading and unloading work, which is very troublesome work.

This problem is caused by Japanese Patent Laid-Open No. 58-198732.
It can be solved by using a scale for weighing the amount of unloading disclosed in the issue. That is, by placing the prepared foods on the weighing pan first and weighing the amount removed from the weighing pan, the work of placing the prepared foods on the weighing pan for each weighing can be omitted, and the weighing work is extremely easy. Will be things.

[0004]

However, in the case of this withdrawal weighing, the operator needs to perform an operation (reset operation) for setting the weighing value to "zero" each time the weighing is completed (if this operation is not performed, The amount taken down will be accumulated). This operation is a work to press the key of the operation part of the scale with fingers, but since the side dish is usually done by hand, there is a problem in hygiene, and the operation part of the scale becomes dirty and causes the malfunction. Becomes

In order to cover such a drawback, it is possible to solve the problem by using a pedal type remote switch for operating the key with a foot. However, the burden on the operator is increased, the cost is increased by providing the remote switch, and there is another problem that the remote switch is caught and the scale is damaged. The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electronic weighing device that does not require a worker to perform a reset operation each time weighing is completed.

[0006]

In order to solve the above-mentioned problems, in the invention described in claim 1, an electronic balance device for measuring the amount withdrawn from a weighing pan comprises: a. Setting means for setting a target weight or a target weight range; b.
Determination means for determining whether the measured value is within the target weight or the target weight range when the measured value is stable; and c. If the determination result of the determination means is "YES", an informing means for informing that effect; d. And a reset unit for resetting the measured value after a predetermined time has passed from the notification by the notification unit.

According to a second aspect of the present invention, there is provided an electronic weighing apparatus which weighs an amount unloaded from a weighing pan and divides the weighing value by a unit weight to calculate the number of articles.
Setting means for setting the target number or target number range,
b. Determination means for determining whether or not the number calculated based on the measured value is within the target number or the target number range when the measured value is stable; c. If the determination result of the determination means is "YES", an informing means for informing that effect; d.
And a reset unit for resetting the measured value after a predetermined time has passed from the notification by the notification unit.

According to the third aspect of the invention, in the electronic weighing device for weighing the amount taken down from the weighing pan,
a. Setting means for setting a target weight or a target weight range; b. Determination means for determining whether the measured value is within the target weight or the target weight range when the measured value is stable; and c. When the judgment result of the judgment means is “YES”,
Reporting means for reporting that fact, d. Detecting means for detecting that the container for containing the object to be weighed has been carried in by the carrier device; e. Reset means for resetting the measured value based on the output signal of the detecting means.

According to a fourth aspect of the present invention, there is provided an electronic weighing apparatus which weighs an amount unloaded from a weighing pan and divides the weighing value by a unit weight to calculate the number of articles.
Setting means for setting the target number or target number range,
b. Determination means for determining whether or not the number calculated based on the measured value is within the target number or the target number range when the measured value is stable; c. If the determination result of the determination means is "YES", an informing means for informing that effect; d.
Detecting means for detecting that the container for containing the object to be weighed has been carried in by the carrier device; e. Reset means for resetting the measured value based on the output signal of the detecting means.

[0010]

In the invention described in claim 1, the measured value is low.
When the determination means determines, the measured value is predicted by the setting means.
The target weight or the target weight range set for
Refuse. If the result of the judgment is “YES”,
Knowing means is constant to satisfy the target weight or target weight range.
Notify that the amount has been weighed. And this notification means
After a predetermined time has passed from the notification by
Automatically reset the weight value.

According to the invention of claim 2, the measured value
When the value is stable, the judgment method is calculated based on the measured value.
The number of objects to be weighed is preset by the setting means.
It is determined whether the target number or within the target number range. That
If the judgment result is “YES”, the notification means is the target.
A certain quantity that meets the number or target number range is weighed.
Notify that. And whether this notification means
After a predetermined time has elapsed, the reset means automatically
Reset.

According to the invention of claim 3, the measured value is
When it becomes stable, the judgment means determines the measured value by the setting means.
Check if the target weight is within the preset target weight range or not.
to decide. If the result of the judgment is "YES",
The notification means is one that satisfies the target weight or target weight range.
Informs that a fixed quantity has been weighed. And this informant
After the notification by the step, the detection means
When it is detected that the product has been loaded, the reset means
Reset automatically. Further, according to the invention of claim 4,
Therefore, when the measured value is stable, the judgment means
The number of objects to be weighed calculated based on
Check whether the target quantity or the target quantity range is set in advance.
to decide. If the result of the judgment is "YES",
The notification means is one that satisfies the target number or target number range.
Informs that a fixed quantity has been weighed. And this informant
After the notification by the step, the detection means
When it is detected that the product has been loaded, the reset means
Reset automatically.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

§1. Configuration of First Embodiment FIG. 1 is an external view of an electronic weighing device 1. In the figure, 2
Is a weighing unit including a weighing pan 2a on which an object to be weighed is placed and an internal load cell or the like. Reference numeral 4 is an item to be weighed such as a side dish.

Next, 3 is a control unit which calculates the weight W of the object to be weighed 4 based on the output of the load cell, and
It has a function of calculating the weight α of the object to be weighed (that is, the object to be removed) removed from the weighing pan 2a and displaying it on the display unit 5. An operation unit 6 is composed of a numeric keypad, a reset key, etc., and is operated by an operator. 7,
Both 8 and 9 are lamps. The lamp 8 is turned on when the weight α of the object 4 to be measured falls within a target value or target weight range. Then, the lamp 7 and the lamp 9 are turned on when the weight α of the object to be removed is smaller than the target value or the target weight range and when it is larger than the target value or the target weight range, respectively.

Next, the system configuration of the electronic balance device will be described with reference to FIG. In the figure, 11 is a ROM
The operation control program of the electronic balance device 1 is stored. Reference numeral 10 denotes a CPU, which reads an operation control program from the ROM 11 and sends an operation control command to each part of the electronic scale device 1 and performs various calculations. Thirteen
Is a RAM in which numerical values calculated by the CPU 10 and various data are stored in a readable and writable manner.

§2. Operation of the First Embodiment Next, the operation of the embodiment will be described with reference to the flow chart of the weighing operation shown in FIG. First, the operator presses a key on the operation unit of the electronic scale device to input a target value P or a range H of how many grams of the side dish should be weighed. Next, a tray with an appropriate amount of the prepared dish is placed on the weighing pan 2a (see FIG. 1). Then, the reset key on the operation unit 6 is pressed. As a result, the weight value displayed on the display unit 5 is reset to "0".

Next, the worker removes an appropriate weight α from the side dish (object to be weighed 4) on the weighing pan 2a (step S31). Next, in step S32, the CP
The U10 calculates the removed weight α based on the weight signal from the weighing unit 2 and displays the weight α on the display unit 5. Next, it progresses to step S33.

In step S33, the CPU 10 compares whether the removed weight α is equal to the target value P or whether the weight α is within the range H.
Then, the weight α is equal to the target value P, or the weight α
Is within the range H, the determination is “Yes” and the lamp 8 is turned on. Then, next, the process proceeds to step S34. On the other hand, when the weight α is not equal to the target value P or the weight α does not fall within the range H in step S33, it is determined as “No” and the lamp 7 (the weight α is greater than the target value P or the range H). Small) or lamp 9
After turning on (when the weight α is larger than the target value P or the range H), the process returns to step S31. Then, in step S33, until it is judged "Yes", step S
The processing from 31 to step S33 is repeated.

In step S34, the CPU 10 resets the measured value when a preset predetermined time has elapsed. As a result, the weight value “0” is displayed on the display unit 5 and all the lamps 7 to 9 are turned off, so that the next weighing is possible. After that, the worker repeats the processing from step S31 onward to perform the next weighing. The weighing work can be continuously performed until there is no object to be weighed 4 to be removed from the weighing pan 2a.

In the above embodiment, the weighing pan 2
Although the electronic balance device for measuring the weight α removed from a has been described, the number α of the removed articles is not limited to this, and the weight α removed from the weighing pan 2a is divided by the unit weight β. You may use for the electronic balance apparatus which calculates (theta). In this case, the setting data input in the operation unit 6 is replaced with the target value P or the range H, and the target number N,
Alternatively, the target number range M may be set. And CPU1
Depending on 0, the number θ is the target number N or the target number range M
The process of determining whether or not it is performed may be replaced with step S33 described above.

§3. Second Embodiment In the case of the first embodiment described above, after the weight (or number) of the objects to be removed reaches the target weight (or target number) or the target weight range (or target number range), a predetermined time It was a case where the measured value was automatically reset when the time elapsed and the next measurement was possible. For example, in the case where a side dish such as a bento is divided into small pieces and arranged and processed, it is necessary to set the predetermined time to a time shorter than the time from when the current lunch is arranged to when the next one is arranged for the sake of work efficiency. The second embodiment described below with reference to the drawings is made by paying attention to the fact that the above-mentioned arranging work is usually performed in parallel with the transportation of the bento in the manufacturing line of the bento.
Regarding the configuration of the second embodiment, it is provided in the lunch box production line and provided with a sensor for detecting whether or not the lunch box container on which the side dish is placed is conveyed to a predetermined position. Except for the above, the description is omitted because it is the same as the first embodiment, and the operation of the embodiment will be described with reference to the flow chart of the weighing operation of FIG.

First, the operator presses a key on the operation unit of the electronic weighing device to set a target value P of how many grams of the side dish should be weighed.
Alternatively, the range H is input. Next, a tray with an appropriate amount of the prepared dish is placed on the weighing pan 2a (see FIG. 1). Then, the reset key on the operation unit 6 is pressed. As a result, the weight value displayed on the display unit 5 is reset to "0".

In this state, when the operator places the side dish container in which the side dish is placed on the front side of the operator, the side dish placed on the weighing pan 2a (the object 4 to be weighed)
Then, an appropriate weight α is taken off and stored in a front container (step S41). Next, in step S42,
The CPU 10 calculates the removed weight α based on the weight signal from the weighing unit 2 and causes the display unit 5 to display the weight α. Then, the process proceeds to step S43. Step S43
At, the comparison is made whether the removed weight α is equal to the target value P or whether the weight α is within the range H. Then, when the weight α is equal to the target value P or the weight α falls within the range H, it is determined to be “Yes” and the lamp 8 is turned on (step S44). Then, next, the process proceeds to step S45.

On the other hand, in step S43, if the weight α is not equal to the target value P, or if the weight α does not fall within the range H, it is determined to be "No" and the lamp 7 or the lamp 9 is turned on. , And returns to step S41. Then, in step S43, the processes of steps S41 to S43 are repeated until it is determined to be “Yes”. When the lamp 8 is turned on in step S44, the operator determines that the arranging process for the front container is completed, and activates the conveyor to load the next container.
The conveyor may be automatically started by detecting the lighting of the lamp 8 or by directly receiving a signal from the electronic weighing device. On the other hand, CP
In step S45, the U10 determines whether or not the next container is located at a predetermined position, for example, in front of the operator, based on the output of the sensor. If the determination result is "Yes", the process proceeds to step S46. In step S46,
The CPU 10 resets the measured value. As a result, the weight value “0” is displayed on the display unit 5 and all the lamps 7 to 9 are turned off, and the next weighing is possible. Then, thereafter, the above processing is repeated for the next container. The conveyor may be stopped by any method such as an operator's operation or automatic stop using the sensor.

Further, in the above embodiment, the weighing pan 2
Although the electronic balance device for measuring the weight α removed from a has been described, the number α of the removed articles is not limited to this, and the weight α removed from the weighing pan 2a is divided by the unit weight β. You may use for the electronic balance apparatus which calculates. In this case, the weighing operation in step S42 described above may be replaced with a process for calculating the number θ of articles. In addition,
In the case of the first embodiment, the weight value is reset after a lapse of a predetermined time, and in the case of the second embodiment, the weight value is reset when the loading of the next container is detected. However, it is also possible to combine these embodiments.
That is, if the loading of the next container is detected within a predetermined time, the weight value is reset at that time, and if the loading of the next container is not detected within the predetermined time, the weight value is reset. With this configuration, the weight value display time can be set to a fixed time during normal operation, and the weight display must be reset when the next container is loaded. You can

§4. Effects of Embodiments Since the hardware has the same configuration as the conventional one, the conventional device can be used as it is.

[0028]

The resetting means automatically resets the measured value after a predetermined time has elapsed from the notification by the notifying means or when it is detected that the container has been carried in. Therefore, the operator performs a special key operation for the resetting. It has the advantage that it is not necessary. This simplifies the work and also
Is suitable for a certain amount of weighing work by removing the objects to be weighed.
Therefore, it is possible to continuously perform a fixed amount of weighing work.
Further, there is an effect that the operation section is not dirty and is hygienic, and a pedal type remote switch for resetting is not necessary.

[Brief description of drawings]

FIG. 1 is an external view of an electronic weighing device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a system configuration of an electronic weighing device according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a weighing operation in an embodiment of the present invention.

FIG. 4 is a flowchart showing a weighing operation in another embodiment of the present invention.

[Explanation of symbols]

 1 Electronic Weighing Device 2 Weighing Section 2a Weighing Pan 3 Control Section 4 Object to be Weighed 5 Display Section 6 Operating Section 7, 8, 9 Lamp 10 CPU 11 ROM 13 RAM

Continuation of the front page (56) Reference JP 63-98523 (JP, A) JP 58-198732 (JP, A) JP 63-36118 (JP, A) JP 1-118727 (JP , A)

Claims (4)

(57) [Claims] 1. An electronic weighing device for weighing an amount taken down from a weighing pan, comprising: a. Setting means for setting a target weight or a target weight range; b. When the measured value is stable, the measured value is the target weight,
Or a determining means for determining whether the weight is within the target weight range, and c. If the judgment result of the judgment means is "YES", a notification means for notifying that effect, d. An electronic weighing device, comprising: resetting means for resetting the measured value after a predetermined time has passed from the notification by the notifying means. 2. The amount taken down from the weighing pan is weighed,
In an electronic weighing device for calculating the number of articles by dividing a measured value by a unit weight, a. Setting means for setting a target number or a target number range; b. Determination means for determining whether or not the number calculated based on the measured value is within the target number or within the target number range when the measured value is stable; c. If the judgment result of the judgment means is "YES", a notification means for notifying that effect, d. An electronic weighing device, comprising: resetting means for resetting the measured value after a predetermined time has passed from the notification by the notifying means. 3. An electronic weighing device for weighing an amount taken down from a weighing pan, comprising: a. Setting means for setting a target weight or a target weight range; b. When the measured value is stable, the measured value is the target weight,
Or a determining means for determining whether the weight is within the target weight range, and c. If the judgment result of the judgment means is "YES", a notification means for notifying that effect, d. Detection means for detecting that the container for containing the object to be weighed has been carried in by the carrier device; e. And a resetting unit that resets the measured value based on an output signal of the detecting unit. 4. Weighing the amount withdrawn from the weighing pan,
In an electronic weighing device for calculating the number of articles by dividing a measured value by a unit weight, a. Setting means for setting a target number or a target number range; b. Determination means for determining whether or not the number calculated based on the measured value is within the target number or within the target number range when the measured value is stable; c. If the judgment result of the judgment means is "YES", a notification means for notifying that effect, d. Detection means for detecting that the container for containing the object to be weighed has been carried in by the carrier device; e. And a resetting unit that resets the measured value based on an output signal of the detecting unit.