JP5279581B2 - Weighing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weighing apparatus for surely extracting a to-be-weighed object has the weight within a target weight range, and improving the working efficiency. <P>SOLUTION: The weighing apparatus includes: a first load cell 17; a second load cell 27 supplied with the to-be-weighed object supplied to the first load cell 17; a first determination means A1 for determining whether a weighed value of the first load cell 17 is within a production target weight range, lower than a lower limit of the range, or larger than an upper limit of the range; a first determination lamp 15 for announcing a determination result; a first display 14 for displaying the weighed value of the first load cell 17; a second determination means A2 for determining whether an additional value of the weighed value of the first load cell 17 at a first time point and a decrease is within the production target weight range, lower than the lower limit of the range, or larger than the upper limit of the range when the weighed value of the second load cell 27 at a second time point is decreased from the weighed value at the first time point; and a second determination lamp 25 for announcing a determination result. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a weighing device used for producing a product in which the weight of an object to be weighed is within a predetermined target weight range.

  Conventionally, when producing a product in which the weight of an object to be weighed, such as a sugar beet, falls within a predetermined target weight range, for example, a quantitatively packed product, an operator places the object to be weighed on a single weighing instrument, The amount of the object to be weighed is adjusted by adding or removing the object to be weighed so that the measured value is within the target weight range.

  On the other hand, in Patent Documents 1 and 2, when a large amount of objects to be weighed are placed on one weighing instrument and the operator takes out the objects to be weighed from the weighing instrument, the weighing instrument calculates the amount to be removed. The required configuration is disclosed. Further, in Patent Document 1, it is determined whether the obtained removal amount is within the target weight range, greater than the upper limit value of the target weight range, or less than the lower limit value of the target weight range, and the determination result is determined by the operator. A configuration is disclosed in which the system is notified.

JP-A-8-128881 JP 58-198732 A

  Conventionally, when producing a product such as a quantitatively packed product, when adjusting the amount of an object to be placed on a measuring instrument so as to be within a target weight range, an operator takes a measure to add the object to be weighed. In many cases, the amount is not within the target weight range by adding one time, and when it is repeatedly added or overloaded, it is necessary to remove it, and there is a problem that the work efficiency cannot be improved.

  Moreover, in the case of the configuration of Patent Documents 1 and 2, since the weight value of the object to be weighed that is taken out from the measuring instrument is not directly measured, it cannot be said to be a true weight value, and when shipping as a product, There is a problem that the weight of the object to be weighed must be reweighed.

  In addition, when producing multiple products, prepare multiple containers such as trays with some objects to be weighed in advance, place each container on a measuring instrument and weigh each item in order. In some cases, it is more efficient to adjust the weight range to the target weight range by adding or reducing the excess amount. In such a case, the techniques of Patent Documents 1 and 2 that do not directly measure the weight value of an object to be weighed as a product cannot be applied.

  The present invention has been made in order to solve the above-described problems. A weighing device that can reliably take out an object to be weighed within a target weight range and can improve work efficiency. The purpose is to provide.

  In order to achieve the above object, the weighing device of the present invention measures the weight of the supplied weighing object, and when the measured value is within the production target weight range, the weighing object is taken out by the operator. A first weight detector, a second weight detector for supplying a weight to be supplied to the first weight detector, and weighing the weight of the supplied weight object, and the first weight detector. First determination means for determining whether a measured value of the weight detector is within a production target weight range, smaller than a lower limit value of the production target weight range, or larger than an upper limit value of the production target weight range; First notifying means for notifying an operator of a determination result by one determining means, a first indicator for displaying a measured value of the first weight detector, and the first determination at a first time point The determination result of the means is that the measured value of the first weight detector is the raw value. When the weighing object to be supplied to the first weight detector is taken out from the second weight detector when the weight is smaller than the lower limit value of the target weight range, the second weight after the first time point is removed. When the weight value of the second weight detector at the time point becomes less than the weight value of the second weight detector at the first time point, the second time point relative to the first time point. A production weight estimated value that is a value obtained by calculating a decrease amount of the measurement value of the second weight detector and adding the decrease amount to the measurement value of the first weight detector at the first time point is the production target. Second determination means for determining whether the weight is within a weight range, less than a lower limit value of the production target weight range or greater than an upper limit value of the production target weight range, and a result of the determination by the second determination means as an operator And a second notifying unit for notifying the user.

  According to this configuration, since the weight of an object to be measured, for example, a fixed-quantity product is weighed by the first weight detector, the object to be weighed with a weight within the production target weight range is surely taken out. Can do.

  Further, when the object to be weighed to be supplied to the first weight detector is taken out from the second weight detector, the second notification means determines whether the take-out amount is appropriate, too large or too small. Therefore, if the amount to be taken out is adjusted at the time of taking out, it is possible to obtain the weight within the production target weight range by supplying the taken out weighing object once to the first weight detector, thereby improving the work efficiency. be able to.

  In addition, when an excessive amount of objects to be weighed is taken out from the first weight detector because the amount of objects to be weighed supplied to the first weight detector is too large, the objects to be weighed from the first weight detector are removed. Since the first notification means can determine whether the amount to be taken out is appropriate, too large or too small at the time when the amount is taken out, if the amount to be taken out is adjusted at the time of taking out, the object taken out from the first weight detector is removed. The weight within the production target weight range can be obtained by performing the operation (return operation) of supplying the weighing object to the second weight detector only once, and the work efficiency can be improved. In addition, since the amount of the object to be weighed out from the first weight detector can be adjusted while observing the measurement value displayed on the first display device, this also improves the work efficiency.

  Further, when the second determination means determines that the estimated production weight value is smaller than the lower limit value of the production target weight range, the second determination means calculates a difference between the estimated production weight value and the lower limit value of the production target weight range. A second display configured to calculate and display the difference may be further provided.

  According to this configuration, when the amount taken out from the second weight detector to supply the object to be weighed to the first weight detector is too small, while looking at the difference displayed on the second indicator. The amount to be taken out can be adjusted, and the work efficiency can be improved.

  Further, when the second determination means determines that the estimated production weight is larger than the upper limit value of the production target weight range, the second determination means calculates a difference between the estimated production weight value and the upper limit value of the production target weight range. The difference may be calculated and displayed on the second display.

  According to this configuration, when the amount taken out from the second weight detector is too large to supply the object to be weighed to the first weight detector, the above difference displayed on the second display is being viewed. The amount to be taken out can be adjusted, and the work efficiency can be improved.

  In addition, a first type of weighing object, which is a weighing object to be supplied to the first weight detector and is a different type of weighing object from the second weight detector, is supplied. A third weight detector for measuring the weight of the first type of object to be weighed, wherein the first determination means has a measurement value of the first type of weight to be measured. Determining whether it is within the target weight range of the object, smaller than the lower limit value of the target weight range of the first type of weighing object, or larger than the upper limit value of the target weight range of the first type of weighing object, After the weighing value of the first weight detector is within the target weight range of the first type of object, whether the weighing value of the first weight detector is within the production target weight range or the production. It is judged whether it is smaller than the lower limit value of the target weight range or larger than the upper limit value of the production target weight range. The determination result of the first determination means at a third time point before the first time point is the weight value of the first weight detector is the target weight range of the first type of object to be weighed. When an object to be weighed to be supplied to the first weight detector is taken out from the third weight detector when it is smaller than the lower limit value of the first weight detector, the third object is before the first time point and the third weight detector. When the weight value of the third weight detector at the fourth time point after the time point is less than the weight value of the third weight detector at the third time point, with respect to the third time point. A reduction amount of the measurement value of the third weight detector at the fourth time point is calculated, and the target value is a value obtained by adding the reduction amount to the measurement value of the first weight detector at the third time point. Whether the estimated weight value is within the target weight range of the first type of object to be measured And a third determining means for determining whether the weight is smaller than the lower limit value of the target weight range of the object to be weighed or larger than the upper limit value of the target weight range of the first type of object to be weighed. There may be further provided third informing means for informing the operator of the determination result.

  According to this configuration, the worker supplies the first weight detector to the second weight detector after supplying the first type of object to be measured supplied to the third weight detector, for example. The work procedure is determined so as to supply the object to be weighed (this kind of object to be weighed is hereinafter referred to as “second kind of object to be weighed”). Here, since the weight of an object to be measured, for example, which is a quantitative pack product including the first type and the second type of object to be weighed is measured by the first weight detector, the first type object to be reliably measured Take out the objects to be weighed including the first type of objects to be weighed within the target weight range and the total weight of the first and second kinds of objects to be weighed within the production target weight range. Can do.

  Further, when the first type object to be supplied to the first weight detector is taken out from the third weight detector, the third notification means makes the take-out amount appropriate or too large or small. Since it is possible to determine whether the weight is too large, the weight within the target weight range of the first type of weighing object can be adjusted by supplying the removed weighing object once to the first weight detector. It is possible to improve the work efficiency.

  Further, when the object to be weighed to be supplied to the first weight detector is taken out from the second weight detector, the second notification means determines whether the take-out amount is appropriate, too large or too small. Therefore, if the amount to be taken out is adjusted at the time of taking out, it is possible to obtain the weight within the production target weight range by supplying the taken out weighing object once to the first weight detector, thereby improving the work efficiency. be able to.

  In addition, the amount of the first type object to be weighed supplied to the first weight detector or the amount of the first and second type objects to be weighed is too large, and the first weight detector is excessively weighed. When taking out an object, the take-out amount is appropriate or too large by the first notification means when the first-type object or the second-type object is taken out from the first weight detector. Since it is possible to determine whether the amount is too small, if the amount to be taken out is adjusted at the time of taking out, an operation of supplying the object to be weighed out from the first weight detector to the third weight detector or the second weight detector ( It is possible to make the weight within the target weight range or the production target weight range of the first type object to be measured by performing the returning operation only once, and the work efficiency can be improved. In addition, since the amount of the object to be weighed out from the first weight detector can be adjusted while observing the measurement value displayed on the first display device, this also improves the work efficiency.

  Further, when the second determination means determines that the estimated production weight value is smaller than the lower limit value of the production target weight range, the second determination means calculates a difference between the estimated production weight value and the lower limit value of the production target weight range. And when the third determination means determines that the estimated weight value is smaller than a lower limit value of a production target weight range of the first type of measured object, A second display for displaying the difference calculated by the second determination means, configured to calculate the difference between the estimated object weight and the lower limit value of the target weight range of the first type of weighing object. And a third display for displaying the difference calculated by the third determination means.

  According to this configuration, when the amount taken out from the third weight detector to supply the object to be weighed to the first weight detector is too small, while watching the difference displayed on the third indicator. The amount to be taken out can be adjusted, and the work efficiency can be improved. Also, when the amount taken out from the second weight detector is too small to supply the object to be weighed to the first weight detector, the amount taken out is adjusted while looking at the difference displayed on the second indicator. And work efficiency can be improved.

  Further, when the second determination means determines that the estimated production weight is larger than the upper limit value of the production target weight range, the second determination means calculates a difference between the estimated production weight value and the upper limit value of the production target weight range. And calculating the difference and displaying the difference on the second display unit. The third determination means is configured such that the estimated weight of the object to be measured is a production target weight range of the first kind of object to be measured. When it is determined that it is larger than the upper limit value, a difference between the estimated weight value of the object to be measured and an upper limit value of the target weight range of the first type object to be measured is calculated, and this difference is displayed on the third display. It may be configured to display.

  According to this structure, when there is too much quantity taken out from a 3rd weight detector in order to supply a to-be-measured object to a 1st weight detector, looking at the said difference displayed on a 3rd indicator. The amount to be taken out can be adjusted, and the work efficiency can be improved. Also, when the amount to be taken out from the second weight detector is too large to supply the object to be weighed to the first weight detector, the amount to be taken out is adjusted while looking at the difference displayed on the second indicator. And work efficiency can be improved.

  A plurality of the second weight detectors may be provided.

  The present invention provides a weighing device that has the above-described configuration, can reliably take out an object to be weighed within a target weight range, and can improve work efficiency. There is an effect that can be done.

(A) is a perspective view which shows an example of the external appearance of the weighing | measuring device of the 1st Embodiment of this invention, (b) is a front view which shows the indicator and determination lamp of the same weighing device. It is a block diagram which shows the structure of the weighing | measuring apparatus of 1st Embodiment. It is a flowchart which shows an example of operation | movement of the 1st measuring device of the measuring device of 1st Embodiment. It is a flowchart which shows an example of operation | movement of the 2nd measuring device of the measuring device of 1st Embodiment. (A) is a figure which shows the measurement operation | work using the weighing | measuring apparatus of 1st Embodiment, (b)-(d) is an example of the operation state of two indicators and determination lamps of the weighing apparatus, respectively. FIG. (A) is a figure which shows the measurement operation | work using the weighing | measuring apparatus of 1st Embodiment, (b) is a figure which shows an example of the operation state of two indicators and determination lamps of the weighing apparatus. . (A) is a figure which shows the measurement operation | work using the weighing | measuring apparatus of 1st Embodiment, (b) is a figure which shows an example of the operation state of two indicators and determination lamps of the weighing apparatus. . In 1st Embodiment, it is a block diagram which shows an example at the time of setting it as the structure which integrated two measuring instruments as one apparatus, and has one control apparatus. (A) is a perspective view which shows an example of the external appearance of the weighing | measuring device of the 2nd Embodiment of this invention, (b) is a front view which shows the indicator and determination lamp of the same weighing device. It is a block diagram which shows the structure of the weighing | measuring apparatus of 2nd Embodiment. (A)-(g) is a figure which shows an example of the operation state of three indicators and the determination lamp of the weighing | measuring apparatus of 2nd Embodiment, respectively. In 2nd Embodiment, it is a block diagram which shows an example at the time of setting it as the structure which integrated three measuring instruments as one apparatus, and has one control apparatus. (A)-(e) is a figure which shows an example of the operation state of three indicators and the determination lamp of the weighing | measuring apparatus of the 3rd Embodiment of this invention, respectively.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
Fig.1 (a) is a perspective view which shows an example of the external appearance of the weighing | measuring device of the 1st Embodiment of this invention, FIG.1 (b) is a front view which shows the indicator and determination lamp of the same weighing device. is there. FIG. 2 is a block diagram showing the configuration of the weighing device.

  This measuring device has first and second measuring devices 1 and 2.

  The first weighing instrument 1 includes a weighing table 11 and a display board 12. The weighing table 11 is supported by, for example, a load cell 17, and the weight of an object to be weighed placed on the weighing table 11 is measured by the load cell 17. A control device 13 is housed inside the display panel 12. Further, a display 14 for displaying a weight value and the like, a determination lamp 15 and an operation unit 16 are provided on the front surface of the display panel 12. The control device 13 is constituted by a CPU, a memory, and the like, and receives an analog electric signal from the load cell 17 via the A / D converter 18 to acquire the weight of an object to be weighed placed on the weighing table 11 and to operate the control device 13. The input signal by the operation of the unit 16 is input. The control device 13 controls the display 14 and the determination lamp 15.

  The second measuring instrument 2 also includes a measuring table 21 and a display board 22 similar to the first measuring instrument 1. The weighing table 21 is supported by, for example, a load cell 27, and the weight of an object to be weighed placed on the weighing table 21 is measured by the load cell 27. A control device 23 is accommodated in the display panel 22. Further, a display 24 for displaying a weight value or the like, a determination lamp 25, and an operation unit 26 are provided on the front surface of the display panel 22. The control device 23 is constituted by a CPU, a memory, and the like, receives an analog electric signal from the load cell 27 via the A / D converter 28, acquires the weight of an object to be placed on the weighing table 21, and operates the control device 23. An input signal obtained by operating the unit 26 is input. Further, the control device 23 controls the display 24 and the determination lamp 25.

  The control device 13 of the first measuring instrument 1 and the control device 23 of the second measuring instrument 2 are configured to be communicable wirelessly or by wire. The indicators 14 and 24 are configured by, for example, a liquid crystal display, and the determination lamps 15 and 25 are configured by using, for example, a multicolor light emitting diode.

  In this embodiment, the first weighing instrument 1 measures the weight of an object to be weighed as a fixed-quantity product, and the second weighing instrument 2 measures the weight 21 in order to add to the first weighing instrument 1. The weight of the object to be weighed is measured. In the first measuring instrument 1 and the second measuring instrument 2, the functions of the control device 13 and the control device 23 are different. The first measuring instrument 1 and the second measuring instrument 2 are each an individual use mode for use as a normal measuring instrument alone, and a main side and a subordinate for use as a measuring device of this embodiment. The side connection usage mode can be switched. This switching is performed by operating the respective operation units 16 and 26. In the following description, it is assumed that the first measuring instrument 1 is in the main side connection use mode and the second measuring instrument 2 is in the subordinate connection use mode.

  When the operator operates the operation unit 16 of the first measuring instrument 1 in advance and inputs the upper limit value and the lower limit value of the target weight range (production target weight range) of the fixed quantity packed product to the control device 13, the control is performed. The device 13 stores the upper limit value and the lower limit value and transmits them to the control device 23 of the second measuring instrument 2. The control device 23 of the second measuring instrument 2 stores the received upper limit value and lower limit value of the target weight range. Here, the upper limit value and the lower limit value of the target weight range of the quantitatively packed product are set to the weight value without tare (the weight value of only the objects to be weighed placed on the tray 4).

  When the weighing is started, the first weighing instrument 1 displays a large weight value of the object to be weighed placed on the weighing table 11 in the wide display area 14a of the indicator 14, and sets the upper limit value of the target weight range. Is displayed on the narrow display area 14b, and the lower limit value of the target weight range is displayed on the other narrow display area 14c.

  Further, in the second measuring instrument 2, a large display area 24 a of the display 24 displays a large amount of the object to be weighed with respect to the upper limit value or the lower limit value of the target weight range of the fixed quantity product, and from the weighing table 21. The weight value of the weighing object taken out or added to the weighing table 21 is displayed in one narrow display area 24b, and the weight value of the weighing object placed on the weighing table 21 is displayed in the other narrow display area 24c. It is configured to display.

  FIG. 3 is a flowchart showing an example of the operation of the first measuring instrument 1 (processing of the control device 13), and FIG. 4 shows an example of the operation of the second measuring instrument 2 (processing of the control device 23). It is a flowchart. 5-7 is a figure which shows an example of the measurement operation | work using the measuring device of this embodiment, and operation | movement of the measuring device.

  First, here, 210 (g) as the upper limit value of the target weight range and 200 (g) as the lower limit value are already stored in the control devices 13 and 23 of the first and second measuring instruments 1 and 2. Shall. Although not shown in FIG. 3, the control device 13 of the first weighing instrument 1 sequentially acquires the weight value of the object to be weighed on the weighing table 11 (hereinafter referred to as “product weight value”). Then, the weight value is displayed on the wide display area 14 a of the display 14. Although not shown in FIG. 4, the control device 23 of the second measuring instrument 2 sequentially acquires the weight value (hereinafter referred to as “raw material weight value”) of the object to be weighed placed on the weighing table 21. Then, the weight value is displayed in the narrow display area 24c of the display 24.

  In the present embodiment, the tray 4 on which some objects to be weighed are already prepared is prepared in advance, and the operator prepares the tray 4 on which the prepared objects to be weighed are placed on the first weighing instrument 1. The object to be weighed is added to or removed from the weighing table 11 so that the weight of the object to be weighed on the tray 4 falls within the target weight range. A container 5 containing objects to be weighed for adding to the tray 4 is placed on the weighing platform 21 in the second weighing instrument 2. When the objects to be weighed are taken out from the tray 4, the taken objects to be weighed are put into the container 5.

  First, the operator places the tray 4 on which some objects to be weighed are placed on the weighing table 11 of the first weighing instrument 1. This state is the state shown in FIG. The control device 13 of the first measuring instrument 1 sequentially acquires the product weight value measured by the load cell 17 and displays the weight value (185 g in the case of FIG. 1) on the display unit 14.

  If there is a change in the product weight value to be acquired (step S1), it is determined whether an object to be weighed is placed on the weighing table 11 based on the latest product weight value (step S2). For example, when the product weight value is less than or equal to zero, it is determined that the object to be weighed is not placed, and when the product weight value is a positive value, it is determined that the product is placed. The product weight value is a value not including the weight of the tray 4.

  If it is determined in step S2 that an object to be weighed is not placed, the determination lamp 15 is turned off if it is lit (step S11).

  When it is determined in step S2 that an object to be weighed is placed and the determination lamp 15 is turned off, the control device 13 transmits the product weight value to the control device 23 (steps S3 and S4). In step S2, it is determined that an object to be weighed is placed, and if the determination lamp 15 is lit, the process proceeds to step S5 without transmitting the product weight value.

  Next, in step S5, the control device 13 determines whether the product weight value is an appropriate amount, a small amount, or an excessive amount. Then, the determination lamp 15 is turned on according to the determination result (steps S6, S7, S8). Here, if the product weight value is within the target weight range (greater than or equal to the lower limit value of the target weight range and less than or equal to the upper limit value), it is determined as an appropriate amount, and smaller than the lower limit value of the target weight range, it is determined as a small amount. If it is larger than the upper limit value, it is determined that the amount is excessive. When the amount is appropriate, the determination lamp 15 is lit in blue (step S6). When the amount is small, the determination lamp 15 is lit red (step S7). When the amount is excessive, the determination lamp 15 is lit yellow (step S8). If the amount is appropriate, a reset signal is transmitted to the control device 23 (step S10).

  In the case of FIG. 1, it is a state when the tray 4 containing some objects to be weighed is placed on the weighing platform 11 on which nothing is placed, and the control device 13 of the first measuring instrument 1 acquires the acquired product weight. The value (185 g) is transmitted to the control device 23 (step S4), and the product weight value is smaller than the lower limit value (200 g) of the target weight range, so it is determined that it is a small amount, and the determination lamp 15 is lit red (steps S5, S7). .

  In addition, in the control device 23 of the second measuring instrument 2, the value of the excess / deficiency displayed in the display area 24a of the display 24 is initially set to zero.

  Upon receiving the product weight value (185 g) transmitted from the control device 13 in step S4, the control device 23 calculates the excess / deficiency amount and displays it on the display area 24a of the display 24 (steps S21 and S22). A method for calculating the excess / deficiency will be described. In step S22, when the product weight value is less than or equal to the upper limit value of the target weight range, the excess / deficiency amount is calculated based on the lower limit value of the target weight range, and the product weight value exceeds the upper limit value of the target weight range. The excess / deficiency is calculated based on the upper limit of the target weight range. When the product weight value is 185 g, it is equal to or less than the upper limit value (210 g) of the target weight range, so 15 g is insufficient if the lower limit value (200 g) of the target weight range is used as a reference. This value (15g) is displayed in the display area 24a as an excess / deficiency amount. Further, if the product weight value is 215 g, it exceeds the upper limit value (210 g) of the target weight range, so that it exceeds 5 g if the upper limit value (210 g) of the target weight range is used as a reference. This value (5g) is displayed in the display area 24a as an excess / deficiency amount.

  Next, in step S23, the control device 23 determines whether the product weight value is an appropriate amount, a small amount, or an excessive amount. This determination is performed in the same manner as step S5 in FIG. If the determination result is an appropriate amount, the determination lamp 25 is lit in blue (step S24), if it is small, it is lit red (step S25), and if it is excessive, it is lit yellow (step S26).

  Next, in step S28, it is determined whether or not there is a change in the raw material weight value. If there is a change in the raw material weight value, the total change amount of the raw material weight value is calculated and displayed in the display area 24b of the display 24. (Step S29). The total change amount of the raw material weight value is the change amount of the raw material weight value at the current time point (when step S29 is performed) with respect to the raw material weight value when the tray 4 is placed on the weighing table 11. Here, for example, when the determination lamp 25 is lit red by the process of step S <b> 25 and the product weight value is small, the operator takes out the object to be weighed from the container 5 and adds it to the tray 4. Here, there is a change in the raw material weight value when the operator takes out the object to be weighed from the container 5, and the removal amount is displayed in the display area 24b as the total change amount of the raw material weight value. If the determination lamp 25 is lit yellow by the process of step S26 and the product weight value is excessive, the operator takes the object to be weighed from the tray 4 and puts it in the container 5. In this case, there is a change in the raw material weight value when the operator puts the object to be weighed into the container 5, and the weight of the object to be weighed put in the container 5 is displayed in the display area 24b as the total change amount of the raw material weight value. The

  Next, in step S30, the excess / deficiency amount is calculated and displayed on the display area 24a of the display 24 (steps S21 and S22). A method for calculating the excess / deficiency will be described. Here, the excess / deficiency amount is calculated in the same manner as in step S22 except that the estimated product weight value is used instead of the received product weight value in step S21. The estimated product weight will be described. The estimated product weight value is obtained by adding and subtracting the total amount of change in the raw material weight value to the product weight value. That is, if the raw material weight value decreases, the decrease is added to the product weight value to obtain an estimated product weight value. If the raw material weight value increases, the increase is subtracted from the product weight value. To obtain the estimated product weight.

  Next, in step S31, the control device 23 determines whether the estimated product weight value is an appropriate amount, a small amount, or an excessive amount. This determination is performed in the same manner as in the case where the product weight value is determined in step S5 of FIG. When the determination result is an appropriate amount, the determination lamp 25 is lit in blue (step S32), when it is small, it is lit red (step S33), and when it is excessive, it is lit yellow (step S34).

  Next, the process returns to step S28. When the reset signal (step S10) transmitted from the control device 13 of the first measuring instrument 1 is received in step S37, the determination lamp 25 is turned off and the excess / deficiency amount is reset to zero (step S38). Return to step S21.

  For example, as shown in FIG. 1 (b), when the product weight value when the tray 4 on which the objects to be weighed are previously placed is placed on the weighing table 11 is small, the control of the first weighing instrument 1 is performed. The apparatus 13 proceeds to the process of step S7 through steps S1 to S5, and turns on the determination lamp 15 in red. On the other hand, the control device 23 of the second measuring instrument 2 proceeds to the process of step S25 through steps S21, S22, and S23, displays the excess / deficiency amount in the display area 24a, and lights the determination lamp 25 in red.

  Next, since the product weight value is small, the operator takes out the objects to be weighed added to the tray 4 from the container 5. Thereby, the control apparatus 23 of the 2nd measuring instrument 2 progresses to the process of step S28-S31, and progresses to the process of either step S32, S33, or S34 according to the determination result of step S31.

  Here, for example, when the amount to be taken out from the container 5 is too small and the taken-out object to be weighed is placed on the tray 4 and does not reach the lower limit value of the target weight range, it is too short and over as shown in FIG. The amount (shortage amount 5g) is displayed in the display area 24a, and the determination lamp 25 is lit in red. In this case, the operator subsequently takes out the object to be weighed from the container 5 so that the determination lamp 25 is lit in blue. As a result, for example, as shown in FIG.

  On the other hand, if the amount to be taken out from the container 5 is too large and the taken-out object to be weighed is placed on the tray 4, if the upper limit value of the target weight range is exceeded, an excess or deficiency amount (excess amount) as shown in FIG. 3g) is displayed in the display area 24a, and the determination lamp 25 is lit in yellow. In this case, the worker subsequently returns a part of the object to be weighed out so that the determination lamp 25 is lit in blue to the container 5. As a result, for example, as shown in FIG.

  As described above, when the determination lamp 25 is lit in blue, the operator places all the objects to be weighed out of the container 5 on the tray 4. As a result, the control device 13 of the first measuring instrument 1 proceeds to the processing of steps S1, S2, and S3. Further, from step S3, the determination lamp 15 is lit in blue in step S6 through step S5, and reset in step S10. The signal is transmitted to the control device 23 of the second measuring instrument 2. When receiving the reset signal in step S37, the control device 23 of the second measuring instrument 2 turns off the determination lamp 25 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. The state at this time is shown in FIG.

  Next, when the tray 4 having an appropriate product weight value is removed from the weighing table 11, the control device 13 of the first weighing instrument 1 proceeds from step S1 to step S11 to step S11, and the determination lamp 15 is turned on. Turns off. The state at this time is shown in FIG. In FIG. 7B, the weight of the tray 4 is ignored (assumed to be 0 g), and the display of the display area 14a of the display device 14 is shown as 0 (g). Displayed by value.

  If the product weight value when the tray 4 is placed on the weighing table 11 is excessive, the control device 13 of the first weighing instrument 1 proceeds to the process of step S8 through steps S1 to S5, and the determination is made. The lamp 15 is lit in yellow. On the other hand, the control device 23 of the second measuring instrument 2 proceeds to the process of step S26 through steps S21, S22, and S23, displays the excess / deficiency amount in the display area 24a, and lights the determination lamp 25 in yellow.

  Next, since the product weight value is excessive, the operator takes out the excess object to be weighed from the tray 4. Thereby, the control device 13 of the first measuring instrument 1 proceeds to the processes of steps S1, S2, and S3, further proceeds from step S3 to the process of step S5, and steps S6 and S7 according to the determination result of step S5. , The process proceeds to any one of S8.

  Here, for example, when the amount to be taken out from the tray 4 is too small, and the determination lamp 15 continues to be lit in yellow, the operator further removes the object to be weighed from the tray 4 so that the determination lamp 15 is lit in blue. Take out. As a result, the determination lamp 15 is lit in blue (step S6).

  On the other hand, when the amount taken out from the tray 4 is too large and the product weight value is smaller than the lower limit value of the target weight range, the determination lamp 15 is lit in red. In this case, the operator then returns a part of the object to be weighed out to the tray 4 so that the determination lamp 15 is lit in blue. As a result, the determination lamp 15 is lit in blue (step S6).

  When the determination lamp 15 is lit in blue as described above, the operator then places all the objects to be weighed out of the tray 4 on the container 5. Further, after step S6, the control device 13 of the first measuring instrument 1 transmits a reset signal to the control device 23 of the second measuring instrument 2 in step S10. When receiving the reset signal in step S37, the control device 23 of the second measuring instrument 2 turns off the determination lamp 25 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. Further, when the tray 4 having an appropriate product weight value is removed from the weighing table 11, the control device 13 of the first weighing instrument 1 proceeds from step S1 to step S11 through step S11, and the determination lamp 15 is turned off. To do.

  When the product weight value when the tray 4 is placed on the weighing table 11 is an appropriate amount, the control device 13 of the first weighing instrument 1 proceeds to the process of step S6 through steps S1 to S5, and the determination is made. The lamp 15 is lit in blue. On the other hand, the control device 23 of the second measuring instrument 2 proceeds to the process of step S24 through steps S21, S22, and S23, displays the excess / deficiency amount in the display area 24a, and lights the determination lamp 25 in blue. Further, after step S6, the control device 13 of the first measuring instrument 1 transmits a reset signal to the control device 23 of the second measuring instrument 2 in step S10. When receiving the reset signal in step S37, the control device 23 of the second measuring instrument 2 turns off the determination lamp 25 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. When the tray 4 is removed from the weighing platform 11, the control device 13 of the first weighing instrument 1 proceeds from step S1 to step S11 through step S2, and turns off the determination lamp 15.

  The calculation of the excess / deficiency in step S22 may be performed by the control device 13 instead of the control device 23, and the calculation result may be transmitted from the control device 13 to the control device 23. Further, the determination process in step S23 may not be performed by the control device 23, but the result of the determination process in step S5 performed following step S4 may be transmitted from the control device 13 to the control device 23.

  In steps S22 and S30, when the product weight value (in the case of step S22) or the estimated product weight value (in the case of step S30) is equal to or lower than the upper limit value of the target weight range, the lower limit value of the target weight range is used as a reference. When the upper limit value of the target weight range is exceeded, the excess / deficiency amount is calculated based on the upper limit value of the target weight range. However, the present invention is not limited to this, and in any case, an arbitrary value within the target weight range. The excess / deficiency may be calculated based on the above.

  In the present embodiment, since the weight of the object to be weighed that is a fixed-quantity product is measured by the first measuring instrument 1, the object to be weighed having a weight within the target weight range can be reliably taken out.

  Further, when the objects to be weighed on the tray 4 are insufficient and the objects to be weighed are added from the container 5, the amount to be taken out is determined by the lighting color of the determination lamp 25 when the objects to be weighed are removed from the container 5. Can be discriminated whether it is appropriate, too much or too little, so if you adjust the take-out amount when you take it out, you can make the product weight value just by putting the taken-out object into the tray 4 once , Work efficiency can be improved. Further, since the amount of the object to be weighed out from the container 5 can be determined by looking at the excess / deficiency displayed in the display area 24a of the display 24, the work efficiency can be improved also by this.

  In addition, when there are too many objects to be weighed on the tray 4 and extra objects to be weighed are taken out from the tray 4, the amount to be taken out depends on the lighting color of the determination lamp 15 when the objects to be weighed are taken out from the tray 4. Can be discriminated whether it is appropriate, too much or too little, so if you adjust the take-out amount when you take it out, you can make the product weight value just by putting the taken-out weighing object into the container 5 once , Work efficiency can be improved. In addition, since the amount of the object to be weighed out from the tray 4 can be adjusted while looking at the product weight value displayed in the display area 14a of the display 14, the work efficiency can also be improved.

  In the above description, the tray 4 on which some objects to be weighed are placed on the weighing table 11 has been described. However, an empty tray 4 is placed on the weighing table 11 and all the objects to be placed on the tray 4 are placed. The case of taking out from the container 5 will be briefly described. In this case, steps S3 and S4 in FIG. 3 are not performed, and if the determination in step S2 is “YES”, the process proceeds to step S5. Here, the value of the product weight value used when calculating the product weight estimated value in steps S30 and S31 of FIG. 4 is set to zero. That is, in this case, the total change amount of the raw material weight value obtained in step S29 is set as the estimated product weight value.

  First, when the empty tray 4 is placed on the weighing table 11 and the object to be weighed is taken out from the container 5, the raw material weight value decreases, and the control device 23 proceeds from step S36 to step S29 in FIG. The process proceeds to step S28 via S34.

  And if the taken-out to-be-measured object is mounted on the tray 4, the control apparatus 13 will perform the process of step S1-S10 of FIG. 3 (except step S3, S4). In this case, since the control device 13 does not perform step S4 for transmitting the product weight value, the control device 23 does not perform the processes of steps S22 to S26.

  For example, when the removal amount of the object to be weighed removed from the container 5 is adjusted and placed on the tray 4 so that the estimated product weight becomes an appropriate amount in step S31 of FIG. 4, the control device 23 performs steps S28 to S29 to S31. Then, the process proceeds to step S32, and the determination lamp 25 is lit in blue. The control device 13 proceeds from steps S1 and S2 to steps S6 and S10 through steps S5, turns on the determination lamp 15 in blue, and transmits a reset signal to the control device 23. The control device 23 proceeds from step S28 to step S38 through step S37, turns off the determination lamp 25, and resets the excess / deficiency amount to zero. Then, when the tray 4 is removed from the weighing table 11, the control device 13 proceeds to the process of step S11 and turns off the determination lamp 15.

  In this way, even if there is no object to be weighed in the tray 4 in advance, whether the amount to be weighed is appropriate, too much or too little depending on the lighting color of the determination lamp 25 when the object to be weighed is taken out from the container 5. Since it can be discriminated, if the take-out amount is adjusted at the time of take-out, the product weight value can be adjusted to an appropriate amount simply by putting the taken-out weighing object into the tray 4 once, and the work efficiency can be improved. Further, since the amount of the object to be weighed out from the container 5 can be determined by looking at the excess / deficiency displayed in the display area 24a of the display 24, the work efficiency can be improved also by this.

  On the other hand, even if a small amount of an object is placed on the tray 4 at the first time, it can be easily adjusted so that the amount taken out at the second time becomes an appropriate amount by looking at the lighting color of the judgment lamp 25, and the work efficiency. Can be improved.

  In addition, when an excessive amount of objects to be weighed is placed on the tray 4 for the first time and an extra object to be weighed is taken out from the tray 4, the determination lamp 15 is turned on when the objects to be weighed are taken out from the tray 4. Since it is possible to determine whether the amount to be taken out is appropriate, too much or too little, if the amount to be taken out is adjusted at the time of taking out, the product weight value can be obtained by simply returning the object to be weighed from the tray 4 to the container 5 once. An appropriate amount can be obtained, and work efficiency can be improved. In addition, since the amount of the object to be weighed out from the tray 4 can be adjusted while looking at the product weight value displayed in the display area 14a of the display 14, the work efficiency can also be improved.

  In this way, as compared with the case where all of the objects to be weighed as commodities are taken out from the container 5, it is better to place some objects to be weighed in advance on the tray 4 as described above. The amount may be small, and the work for adding an object to be weighed to be placed on the second measuring instrument 2 is reduced, which may improve the work efficiency.

  In the present embodiment described above, in FIG. 3, the control device 13 of the first measuring instrument 1 turns on the determination lamp 15 in blue when it is determined to be an appropriate amount in step S5 (step S6), and resets it. Although the signal is transmitted (step S10), step S10, which is a reset signal transmission process, may be performed when the determination lamp 15 is turned off in step S11 without performing step S6. That is, when the product weight value becomes an appropriate amount and the tray 4 is removed from the weighing table 11, the determination lamp 15 may be turned off (step S11) and a reset signal may be transmitted (step S10). In this case, after all the weighing work of the objects to be weighed on one tray 4 is completed, the control device 23 of the second weighing instrument 2 receives the reset signal and proceeds to the process of step S38, and the determination lamp 25 Is turned off and the excess / deficiency amount is reset to zero.

  In the present embodiment, the first weight detector is a load cell 17, the second weight detector is a load cell 27, the first notification means is a determination lamp 15, the second notification means is a determination lamp 25, The first display unit is configured by the display unit 14, the second display unit is configured by the display unit 24, the first determination unit is configured by the control device 13, and the second determination unit is configured by the control unit 23.

  In the present embodiment, the weighing device is configured by using two weighing instruments. However, the weighing device may be integrated as one device. In this case, for example, two load cells, two A / D converters, two weighing platforms, and two indicators are required, but two control devices 13 and 23 can be configured as one control device A. Also in this case, the control device A does not necessarily need to be configured by a single control device, and is configured by a plurality of control devices in which a plurality of control devices are distributed and controlled in cooperation with each other. May be.

  FIG. 8 is a block diagram showing an example in which two measuring instruments are integrated as one device as described above, and two control devices 13 and 23 are configured as one control device A. Components similar to those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted. In this case, the control device A includes a first determination unit A1 and a second determination unit A2. The display 24 also displays the difference (excess / deficiency amount) calculated by the second determination means A2.

(Second Embodiment)
FIG. 9A is a perspective view showing an example of the appearance of the weighing device according to the second embodiment of the present invention, and FIG. 9B is a front view showing an indicator and a determination lamp of the weighing device. is there. FIG. 10 is a block diagram showing the configuration of the weighing device.

  This weighing device has first, second, and third weighing instruments 1, 2, and 3.

  The first and second measuring instruments 1 and 2 are the same as those in the first embodiment.

  The third measuring instrument 3 also includes a measuring table 31 and a display board 32 similar to the first and second measuring instruments 1 and 2. The weighing table 31 is supported by, for example, a load cell 37, and the weight of the object to be weighed placed on the weighing table 31 is measured by the load cell 37. A control device 33 is housed inside the display panel 32. Further, a display 34, a determination lamp 35, and an operation unit 36 for displaying a weight value and the like are provided on the front surface of the display panel 32. The control device 33 is configured by a CPU, a memory, and the like, and receives an analog electric signal from the load cell 37 via the A / D converter 38 to acquire the weight of the object to be weighed placed on the weighing table 31, and to operate the control device 33. An input signal is input by operating the unit 36. The control device 33 controls the display 34 and the determination lamp 35.

  The control device 13 of the first measuring instrument 1 and the control device 23 of the second measuring instrument 2 are configured to be able to communicate wirelessly or by wire, and the control device 13 of the first measuring instrument 1 and the third measuring device 1 Similarly, the control device 33 of the measuring instrument 3 is configured to be communicable. The indicators 14, 24, and 34 are configured by, for example, a liquid crystal display, and the determination lamps 15, 25, and 35 are configured by using, for example, a multicolor light emitting diode.

  In this embodiment, one fixed-quantity packed product is created using two types of objects to be weighed. The types of the objects to be weighed in the container 5 placed on the second measuring instrument 2 and the objects to be weighed in the container 6 placed on the third measuring instrument 3 are different.

  Hereinafter, the type of object to be weighed in the container 5 placed on the second measuring instrument 2 is referred to as an object to be weighed α, and the kind of object contained in the container 6 placed on the third measuring instrument 3. The object to be weighed is called object to be weighed β.

  In addition, Fig.9 (a) does not show the arrangement | positioning method of the 1st-3rd measuring instruments 1-3. For example, the first measuring instrument 1 may be arranged between the second measuring instrument 2 and the third measuring instrument 3.

  In addition, the 1st-3rd measuring instruments 1-3 are the individual use mode for using each as a normal measuring instrument independently, and the main side and subordinate connection use for using as a measuring device of this embodiment The mode can be switched. This switching is performed by operating the respective operation units 16, 26, and 36. In the following description, it is assumed that the first measuring instrument 1 is in the main-side connection use mode, and the second and third measuring instruments 2 and 3 are in the slave-side connection use mode.

  The operator operates the operation unit 16 of the first measuring instrument 1 in advance to set the upper limit value and the lower limit value of the target weight range of the fixed quantity packed product, and the target weight range of the weighing object α included in the fixed quantity packed product. When the upper limit value and the lower limit value are input to the control device 13, the control device 13 stores all the upper limit values and lower limit values and also sends the target weight of the object α to be measured to the control device 23 of the second measuring instrument 2. The upper limit value and the lower limit value of the range are transmitted, and the upper limit value and the lower limit value of the target weight range of the quantitatively packed product are transmitted to the control device 33 of the third measuring instrument 3. The control devices 23 and 33 of the second and third measuring instruments 2 and 3 store the received upper limit value and lower limit value of the target weight range, respectively. Here, the upper limit value and lower limit value of the target weight range of the quantitatively packed product are assumed to be weight values without tare.

  Here, for example, when the target weight range of the quantitative packed product is 250 to 270 g and the target weight range of the object to be weighed is 100 to 110 g, the weight that the object to be weighed β can have in order to create the quantitative packed product. The range will be 140-170g.

  In this case, first, it is determined that the work to be placed on the tray 4 after placing the object to be weighed on the tray 4 and setting the object to be weighed to the target weight range.

  When the weighing is started, the first weighing instrument 1 displays a large weight value of the object to be weighed placed on the weighing table 11 in the wide display area 14a of the indicator 14, and sets the upper limit value of the target weight range. Is displayed on the narrow display area 14b, and the lower limit value of the target weight range is displayed on the other narrow display area 14c. The upper limit value and lower limit value of the target weight range displayed here are initially the upper limit value and lower limit value of the target weight range of the object to be weighed, and the weight of the object to be weighed on the tray 4 is the target weight range. Once inside, the upper limit value and lower limit value of the target weight range of the quantitatively packed product are switched.

  Further, in the second measuring instrument 2, a large display area 24 a of the display 24 displays a large or insufficient amount of the object α with respect to the upper limit value or lower limit value of the target weight range of the object α to be measured, and a weighing table. The weight value of the object to be weighed taken out from 21 or added to the weighing table 21 is displayed in one narrow display area 24b, and the weight value of the object to be weighed placed on the weighing table 21 is displayed in the other narrow area. It is configured to display in the display area 24c.

  Moreover, in the 3rd measuring device 3, while the large and small amount of the to-be-measured object ((alpha) and (beta)) with respect to the upper limit or the lower limit of the target weight range of fixed quantity goods is displayed large on the wide display area 34a of the indicator 34. The weight value of the weighing object β taken out from the weighing table 31 or added to the weighing table 31 is displayed in one narrow display area 34b, and the weight value of the weighing object β placed on the weighing table 31 is displayed. It is configured to display on the other narrow display area 34c.

  FIG. 11 is a diagram illustrating an example of the operation of the weighing device according to the present embodiment.

  The flowchart of the operation of the first measuring instrument 1 (processing of the control device 13) is almost the same as the flowchart shown in FIG. 3, and the operation of the second and third measuring instruments 2, 3 (of the control devices 23, 33). The flowchart of (Process) is almost the same as the flowchart shown in FIG.

  First, here, the control device 13 of the first measuring instrument 1 has already stored 270 (g) as the upper limit value and 250 (g) as the lower limit value of the target weight range of the quantitatively packed product, and the object to be weighed α It is assumed that 110 (g) is already stored as the upper limit value of the target weight range and 100 (g) is already stored as the lower limit value. Assume that 110 (g) is already stored as the upper limit value of the target weight range of the object to be weighed and 100 (g) is already stored as the lower limit value in the control device 23 of the second weighing instrument 2. Further, it is assumed that 270 (g) is already stored as the upper limit value of the target weight range of the fixed quantity package product and 250 (g) is already stored as the lower limit value in the control device 33 of the third measuring instrument 3. Further, the control device 13 of the first weighing instrument 1 sequentially acquires the weight value (hereinafter referred to as “product weight value”) of the object to be weighed placed on the weighing table 11 and displays the weight value on the display 14. Display in a wide display area 14a. In addition, the control devices 23 and 33 of the second and third measuring instruments 2 and 3 sequentially acquire the weight value of the object to be weighed on the weighing platforms 21 and 31 (hereinafter referred to as “raw material weight value”). The weight value is displayed in the narrow display areas 24c and 34c of the indicators 24 and 34.

  The control device 13 of the first measuring instrument 1 first sets the transmission destination of the product weight value in step S4 and the transmission destination of the reset signal in step S10 in the control device 23 of the second measuring instrument 2, and step S5. Is set to the target weight range of the object to be weighed.

  In addition, in the control devices 23 and 33 of the second and third measuring instruments 2 and 3, the value of the excess / deficiency displayed in the wide display areas 24a and 34a of the indicators 24 and 34 is initially set to zero. .

  In the present embodiment, a tray 4 on which some objects to be weighed α are already prepared is prepared in advance, and the operator prepares the tray 4 on which the prepared objects to be weighed are placed on the first weighing device. The weighing object is placed on the weighing table 11 and added or removed so that the weight of the weighing object α on the tray 4 is within the target weight range of the weighing object α. A container 5 containing an object α to be added to the tray 4 is placed on the weighing table 21 in the second weighing instrument 2. When the object to be weighed α is taken out from the tray 4, the taken object to be weighed α is put into the container 5.

  Then, after the weight of the object to be weighed on the tray 4 is set within the target weight range of the object to be weighed α, next, the weight to be weighed is set so that the total weight of the object to be weighed is within the target weight range of the fixed quantity product Put object β. When placing the object to be weighed β, here, a large container (not shown) containing the object to be weighed is prepared in advance, and after some object to be weighed β is placed on the tray 4 from the large container. Then, the objects to be weighed β are added or taken out so that the total weight of the objects to be weighed on the tray 4 falls within the target weight range of the quantitatively packed product. A container 6 containing an object to be weighed β for adding to the tray 4 is placed on the weighing table 31 in the third weighing instrument 3. When the object to be weighed β is taken out from the tray 4, the taken object to be weighed β is put into the container 6.

  First, the worker places the tray 4 on which some object to be weighed α is placed on the weighing table 11 of the first weighing instrument 1. At this time, the control device 13 of the first measuring instrument 1 performs steps S1 to S5 and proceeds to any one of steps S6 to S8 according to the determination result of step S5. On the other hand, the control device 23 of the second measuring instrument 2 performs steps S21 to S23, and proceeds to any one of steps S24 to S26 according to the determination result of step S23.

  Assume that the indicators 14, 24, and 34 and the determination lamps 15, 25, and 35 of the weighing devices 1, 2, and 3 when the tray 4 is placed on the weighing table 11 are in the state shown in FIG. In this case, the product weight value is 80 g in the display area 14 a of the display device 14, and the display area 24 a of the display device 24 indicates that the excess / deficiency amount is 20 g. Since the product weight value is small, step S 7, The determination lamps 15 and 25 are lit red by the process of step S25.

  Next, since the product weight value is small, the operator takes out the object to be weighed α added to the tray 4 from the container 5. Thereby, the control apparatus 23 of the 2nd measuring instrument 2 progresses to the process of step S28-S31, and progresses to the process of either step S32, S33, or S34 according to the determination result of step S31. Here, the operator adjusts the amount of the object α to be taken out from the container 5 so that the determination lamp 25 is lit in blue. As a result, for example, as shown in FIG. 11B, 25 g of the object to be weighed is taken out and the determination lamp 25 is lit in blue.

  Then, the operator places the object to be weighed α taken out from the container 5 on the tray 4. As a result, the control device 13 of the first measuring instrument 1 proceeds to the processing of steps S1, S2, and S3. Further, from step S3, the determination lamp 15 is lit in blue in step S6 through step S5, and reset in step S10. The signal is transmitted to the control device 23 of the second measuring instrument 2. When receiving the reset signal in step S37, the control device 23 of the second measuring instrument 2 turns off the determination lamp 25 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. The state at this time is shown in FIG.

  In steps S22 and S30 performed by the control device 23 of the second measuring instrument 2, the reference for calculating the excess / deficiency is a value within the target weight range of the object to be weighed (for example, an upper limit value, Lower limit value).

  In the present embodiment, the control device 13 of the first measuring instrument 1 transmits a reset signal to the control device 23 of the second measuring instrument 2 in step S10, and further performs a first weighing object switching process. In the first object switching process, the determination lamp 15 is turned on in blue in step S6 and then turned off after a predetermined time has elapsed, and the product weight value transmission destination in step S4 and the reset signal transmission destination in step S10. Is changed from the control device 23 of the second measuring device 2 to the control device 33 of the third measuring device 3, and the standard for determining the product weight value in step S5 is determined from the target weight range of the object α to be measured. Change to the target weight range of the packed product.

  Next, the operator places some objects to be weighed β on the tray 4 from a large container (not shown) containing the objects to be weighed. The state of the indicators 14, 24, and 34 and the determination lamps 15, 25, and 35 of the weighing instruments 1, 2, and 3 when placed is the state shown in FIG. In this case, 120 g of the object to be weighed is placed and the product weight value is 225 g. Since this product weight value is a small amount with respect to the target weight range of the quantitative pack product, the control device 13 of the first measuring instrument 1 proceeds to the process of step S7 through steps S1 to S5, and the determination lamp 15 is turned red. Light up. On the other hand, the control device 33 of the third measuring instrument 3 proceeds to the process of step S25 through steps S21, S22, and S23, displays the excess / deficiency amount (25g) in the display area 34a, and turns on the determination lamp 35 in red. .

  Next, since the product weight value is small, the operator takes out the object to be weighed β added to the tray 4 from the container 6. Thereby, the control apparatus 33 of the 3rd measuring device 3 progresses to the process of step S28-S31, and progresses to the process of step S32, S33, S34 according to the determination result of step S31. Here, the operator adjusts the amount of the object to be weighed β so that the determination lamp 35 is lit in blue and takes it out of the container 6. As a result, for example, as shown in FIG.

  Then, the operator places the object to be weighed β taken out from the container 6 on the tray 4. As a result, the control device 13 of the first measuring instrument 1 proceeds to the processing of steps S1, S2, and S3. Further, from step S3, the determination lamp 15 is lit in blue in step S6 through step S5, and reset in step S10. The signal is transmitted to the control device 33 of the third measuring instrument 3. Upon receiving the reset signal in step S37, the control device 33 of the third measuring instrument 3 turns off the determination lamp 35 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. The state at this time is shown in FIG.

  In the present embodiment, the control device 13 of the first measuring instrument 1 transmits a reset signal to the control device 33 of the third measuring instrument 3 in step S10, and further performs a second weighing object switching process. In the second weighing object switching process, the transmission destination of the product weight value in step S4 and the transmission destination of the reset signal in step S10 are controlled from the control device 33 of the third measuring instrument 3 to the control of the second measuring instrument 2. It changes to the apparatus 23 and the reference | standard which determines the goods weight value in step S5 is changed from the target weight range of fixed quantity package goods to the target weight range of the to-be-measured object (alpha).

  Next, when the tray 4 having an appropriate product weight value is removed from the weighing table 11, the control device 13 of the first weighing instrument 1 proceeds from step S1 to step S11 to step S11, and the determination lamp 15 is turned on. Turns off. The state at this time is shown in FIG. In FIG. 11 (g), the weight of the tray 4 is ignored (0g) and the display area 14a of the display 14 is indicated as 0 (g). Displayed by value.

  In the present embodiment, when producing a quantitative pack product that includes two types of objects to be weighed α and β and the target weight range of one of the objects to be weighed α is determined, the first meter 1 uses the quantitative pack. Since the weight of the object to be weighed α to be measured is measured and the total weight of the object to be weighed α and the object to be weighed β is measured, the weight is surely within the target weight range of the object to be weighed α. An object to be weighed that includes the object to be weighed and whose total weight of the object to be weighed α and the object to be weighed β is surely within the target weight range of the quantitatively packed product can be taken out.

  In addition, when the object to be weighed α placed on the tray 4 is insufficient and the object to be weighed α is added from the container 5, the lighting color of the determination lamp 25 when the object to be weighed is taken out from the container 5, It is possible to determine whether the amount to be taken out is appropriate, too much, or too little, and know how much the object to be weighed should be taken out from the container 5 by looking at the excess / deficiency amount displayed in the display area 24a of the display 24. Therefore, work efficiency can be improved as in the first embodiment.

  Similarly, when the total weight of the objects to be weighed α and β placed on the tray 4 is insufficient and the object to be weighed β is added from the container 6, when the objects to be weighed are taken out from the container 6. Depending on the lighting color of the determination lamp 35, it can be determined whether the amount to be taken out is appropriate, too much or too little, and if the excess or deficiency displayed in the display area 34a of the indicator 34 is observed, the object to be weighed from the container 6 can be seen. It is possible to improve the work efficiency because it is understood how much to remove.

  In addition, when there are too many objects to be weighed (the objects to be weighed α or the objects to be weighed α and β) placed on the tray 4, and extra objects to be weighed are taken out from the tray 4, weighed objects from the tray 4 At the time of taking out the tray 4, it can be determined whether the take-out amount is appropriate, too large or too small by the lighting color of the determination lamp 15, and the tray 4 while watching the product weight value displayed in the display area 14 a of the display 14. Since the amount of the object to be weighed can be adjusted from the above, the work efficiency can be improved as in the first embodiment.

  Further, in the first embodiment, the empty tray 4 is also placed in the present embodiment in the same manner as when the empty tray 4 is placed on the weighing table 11 and all objects to be weighed placed on the tray 4 are taken out from the container 5. Can be configured so that all objects to be weighed placed on the tray 4 are taken out from the containers 5 and 6.

  In the present embodiment, the first weight detector is provided by the load cell 17, the second weight detector is provided by the load cell 37, the third weight detector is provided by the load cell 27, and the first notification means is provided by the determination lamp 15. The second notification means is determined by the determination lamp 35, the third notification means is determined by the determination lamp 25, the first indicator is indicated by the indicator 14, the second indicator is indicated by the indicator 34, and the third indicator is indicated by the display. The first determination unit is configured by the control device 13, the second determination unit is configured by the control device 33, and the third determination unit is configured by the control device 23.

  In this embodiment, the weighing device is configured by using three measuring instruments. However, in the same manner as in the case of integrating the two measuring instruments as one device in the first embodiment, A configuration in which the measuring device is integrated as one device may be used.

  FIG. 12 is a block diagram showing an example in which three measuring devices are integrated as one device as described above, and three control devices 13, 23, and 33 are configured as one control device A. FIG. Components similar to those in FIG. 10 are denoted by the same reference numerals and description thereof is omitted. In this case, the control device A includes a first determination unit A1, a second determination unit A2, and a third determination unit A3. The display 34 also displays the difference (excess / deficiency amount) calculated by the second determination means A2, and the display 24 also displays the difference (excess / deficiency amount) calculated by the third determination means A3. .

(Third embodiment)
The external appearance showing an example of the configuration of the weighing device of this embodiment is the same as that of the weighing device of the second embodiment shown in FIGS. 9A and 9B, and the first, second, and third weighing devices. 1, 2, and 3. Also, the block diagram showing the configuration of the weighing device of the present embodiment is almost the same as the weighing device of the second embodiment shown in FIG. 10, but the communicable configuration between the control devices 13, 23, 33 is different. . In the present embodiment, the control device 13 and the control device 23 are configured to be communicable, and the control device 23 and the control device 33 are configured to be communicable.

  In the present embodiment, as in the second embodiment, one fixed-quantity packed product is created using two types of objects to be weighed α and β, but the target weight range for both of the objects to be weighed α and β. Set only the target weight range of the fixed quantity packaged product without setting. An object to be weighed α is contained in the container 5 placed on the second measuring instrument 2, and an object to be weighed β is contained in the container 6 placed on the third measuring instrument 3.

  In addition, the 1st-3rd measuring devices 1-3 are the individual use modes for using as a normal measuring device independently respectively, and the main side and 1st subordinate side for using as a measuring device of this embodiment. -The second slave connection use mode can be switched. This switching is performed by operating the respective operation units 16, 26, and 36. In the following, the first weighing instrument 1 is in the main side connection usage mode, the second weighing instrument 2 is in the first slave connection usage mode, and the third weighing instrument 3 is in the second slave connection usage mode. Explain that it is.

  When the operator operates the operation unit 16 of the first measuring instrument 1 in advance and inputs the upper limit value and the lower limit value of the target weight range of the fixed quantity packed product to the control device 13, the control device 13 sets the upper limit value. And the lower limit value are stored and transmitted to the control device 23 of the second measuring instrument 2. The control device 23 of the second measuring instrument 2 stores the received upper limit value and lower limit value of the target weight range. Here, the upper limit value and lower limit value of the target weight range of the quantitatively packed product are assumed to be weight values without tare.

  The display 14 of the first weighing instrument 1 displays the weight value of the object to be weighed placed on the weighing platform 11 in the display area 14a in the same manner as the display 14 in the first embodiment. The upper limit value of the target weight range is displayed in one display area 14b, and the lower limit value of the target weight range is displayed in the other display area 14c.

  In addition, the display units 24 and 34 of the second and third measuring instruments 2 and 3 are arranged in the wide display areas 24a and 34a in the target weight range of the quantitatively packed product as in the case of the display unit 24 in the first embodiment. A large and small amount of the object to be weighed with respect to the upper limit value or the lower limit value of the object is displayed, and the weight value of the object to be weighed taken out of or added to the weighing tables 21 and 31 is displayed in one narrow display. The weights of the objects to be weighed displayed on the areas 24b and 34b and placed on the weighing platforms 21 and 31 are displayed on the other narrow display areas 24c and 34c.

  FIG. 13 is a diagram illustrating an example of the operation of the weighing device according to the present embodiment.

  The flowchart of the operation of the first measuring instrument 1 (the process of the control device 13) is the same as the flowchart shown in FIG. 3, and the flowchart of the operation of the second measuring instrument 2 (the process of the control device 23) is shown in FIG. Is substantially the same as the flowchart shown in FIG. In the present embodiment, the control device 33 of the third measuring instrument 3 sequentially transmits the weight of the object to be weighed β contained in the container 6 to the control device 23 of the second measuring instrument 2. Then, the control device 23 of the second measuring instrument 2 uses the weight of the object to be weighed α in the container 5 and the object to be weighed in the container 6 as the raw material weight values in steps S28, S29, and S36 in FIG. The total value with the weight of the product β is used.

  First, here, in the control device 13 of the first measuring instrument 1 and the control device 23 of the second measuring instrument 2, 260 (g) is set as the upper limit value of the target weight range of the fixed quantity packed product, and 250 as the lower limit value. Assume that (g) has already been stored.

  In addition, in the control devices 23 and 33 of the second and third measuring instruments 2 and 3, the value of the excess / deficiency displayed in the wide display areas 24a and 34a of the indicators 24 and 34 is initially set to zero. .

  In the present embodiment, a tray 4 on which some objects to be weighed α and objects to be weighed β are already prepared is prepared in advance, and the operator places the tray 4 on which the prepared objects to be weighed are loaded first. The objects to be weighed α and β are added or taken out so that the weight of the objects to be weighed on the tray 4 is within the target weight range of the quantitatively packed product. When the object to be weighed α is added to the tray 4, the object to be weighed α is taken out from the container 5 on the second measuring device 2, and when the object to be weighed α is taken out from the tray 4, it is taken out. Put the measured object α into the container 5. Further, when adding the object to be weighed to the tray 4, the object to be weighed β is taken out from the container 6 on the third measuring device 3, and when the object to be weighed β is taken out from the tray 4, The taken object to be weighed β is put into the container 6.

  First, the operator places the tray 4 on which some objects to be weighed α and β are placed on the weighing table 11 of the first weighing instrument 1. At this time, the control device 13 of the first measuring instrument 1 performs steps S1 to S5 and proceeds to any one of steps S6 to S8 according to the determination result of step S5. On the other hand, the control device 23 of the second measuring instrument 2 performs steps S21 to S23, and proceeds to any one of steps S24 to S26 according to the determination result of step S23. Further, the control device 23 transmits the excess / deficiency obtained in step S22 and the determination result in step S23 to the control device 33 of the third measuring instrument 3. The control device 33 displays the received excess / deficiency amount in the display area 34a, and lights the determination lamp 35 in a color corresponding to the received determination result.

  It is assumed that the indicators 14, 24, 34 and the determination lamps 15, 25, 35 of the weighing devices 1, 2, 3 when the tray 4 is placed on the weighing table 11 are in the state shown in FIG. In this case, the product weight value is 200 g in the display area 14 a of the display device 14, and the display regions 24 a and 34 a of the display devices 24 and 34 indicate that the excess / deficiency amount is 50 g, and the product weight value is small. Therefore, the determination lamps 15, 25, and 35 are lit red.

  Next, since the product weight value is small, the operator takes out the objects to be weighed added to the tray 4 from either the container 5 or the container 6. Thereby, the control apparatus 23 of the 2nd measuring instrument 2 progresses to the process of step S28-S31, and progresses to the process of either step S32, S33, or S34 according to the determination result of step S31. Further, the control device 23 transmits the excess / deficiency obtained in step S30 and the determination result in step S31 to the control device 33 of the third measuring instrument 3. The control device 33 displays the received excess / deficiency amount in the display area 34a, and lights the determination lamp 35 in a color corresponding to the received determination result. Then, when the operator puts the objects to be weighed out of any of the containers 5 and 6 on the tray 4, the control device 13 of the first measuring instrument 2 proceeds to the process of step S5 through steps S1 to S3, The process proceeds to one of steps S6, S7, and S8 according to the determination result of step S5.

  For example, if the object to be weighed α is taken out from the container 5 and placed on the tray 4 and the object to be weighed α is 20 g, each indicator 14, 24, 34 will display as shown in FIG. Each determination lamp 15, 25, 35 is lit red. In this case, the product weight value is 220 g, indicating that 30 g is insufficient.

  Next, since the product weight value is small, the worker takes out the objects to be weighed added to the tray 4 from, for example, the container 6. Here, the operator adjusts the amount of the object to be weighed β so that the determination lamps 25 and 35 are lit in blue and removes them from the container 6. As a result, the determination lamp 25 is lit in blue. Then, when the taken object to be weighed β is placed on the tray 4, the control device 13 of the first weighing instrument 2 proceeds to the process of step S5 through steps S1 to S3. The determination lamp 15 is lit in blue (state shown in FIG. 13C). Further, a reset signal is transmitted to the control device 23 of the second measuring instrument 2 in step S10. When receiving the reset signal in step S37, the control device 23 of the second measuring instrument 2 turns off the determination lamp 25 and resets the excess / deficiency amount to zero (step S38), and returns to step S21. Further, when receiving the reset signal, the control device 23 transmits an instruction to the control device 33 to turn off the determination lamp 35 and reset the excess / deficiency amount to zero. In response to the instruction, the control device 33 turns off the determination lamp 35 and resets the excess / deficiency amount to zero.

  13B, when an excessive amount of the object to be weighed β is added to the tray 4, for example, as shown in FIG. 13D, the determination lamps 15, 25, and 35 are displayed. It turns yellow. In the case of FIG.13 (d), 45g of the to-be-measured object (beta) is added, the goods weight value is 265g, and exceeds the upper limit of a target weight range. In this case, either the object to be weighed α or the object to be weighed β may be returned to the container (5, 6) so that the total weight of the objects to be weighed on the tray 4 falls within the target weight range. For example, when 6 g of the object to be weighed α is returned from the tray 4 to the container 5, the determination lamps 15, 25, and 35 are lit in blue as shown in FIG.

  When the determination lamp 15 is lit in blue as shown in FIGS. 13C and 13E and the operator removes the tray 4 from the weighing table 11, the control device 13 of the first measuring instrument 1 performs the step. From S1, the process proceeds to step S11 through step S2, and the determination lamp 15 is turned off.

  In the present embodiment, the ratio of the object to be weighed α and the object to be weighed β in the fixed quantity package product is left to the operator's work, and the individual target weight ranges of the objects to be weighed α and β are determined. Absent.

  In the present embodiment, it is obvious that the same effect as in the first embodiment can be obtained.

  Further, in the first embodiment, the empty tray 4 is also placed in the present embodiment in the same manner as when the empty tray 4 is placed on the weighing table 11 and all objects to be weighed placed on the tray 4 are taken out from the container 5. Can be configured so that all objects to be weighed placed on the tray 4 are taken out from the containers 5 and 6.

  In the present embodiment, the first weight detector is determined by the load cell 17, the plurality of second weight detectors are determined by the load cells 27 and 37, the first notification means is determined by the determination lamp 15, and the second notification means is determined by each determination. By the lamps 25 and 35, the first indicator is indicated by the indicator 14, the second indicator is indicated by the indicators 24 and 34, the first determination means is determined by the control device 13, and the second determination means is determined by the control device. 23 respectively.

  In the third embodiment, the weighing device is configured by using three weighing instruments. However, in the same manner as in the case where the two weighing instruments are integrated as one device in the first embodiment, 3 weighing machines are used. A configuration in which a single weighing device is integrated as one device may be employed.

  In addition, in the second and third embodiments, the weighing device of the first embodiment is configured to measure two types of objects to be weighed. Similarly, three or more types of objects are measured. It is also possible to configure a weighing device for weighing a sample.

  In each of the above embodiments, the determination lamps (15, 25, 35) that can change the lighting color are used to notify the determination result of the appropriate amount, the small amount, and the excessive amount. You may make it alert | report a determination result using three determination lamps. Furthermore, other methods may be used as long as the determination result can be notified to the worker. For example, a buzzer may be provided and the determination result of an appropriate amount, a small amount, and an excessive amount may be notified by changing the buzzer sound. Or you may make it alert | report by an audio | voice, or you may make it alert | report by displaying a character etc. (for example, the character of "appropriate amount", "small amount", "excess amount") on a display.

  Further, although the load cell is used as the weight detector, other than the load cell may be used as long as the weight can be detected.

  The weighing device according to the present invention is useful, for example, as a weighing device that can efficiently produce a quantitatively packed product.

DESCRIPTION OF SYMBOLS 1 1st measuring device 2 2nd measuring device 3 3rd measuring device 13,23,33 Control apparatus 14,24,34 Indicator 15,25,35 Judgment lamp 17,27,37 Load cell

Claims (7)

A first weight detector for weighing the supplied weighing object, wherein the weighing object is taken out by an operator when the measured value is within the production target weight range;
A second weight detector which is supplied with an object to be supplied to the first weight detector and measures the weight of the object to be supplied;
First determination means for determining whether a measurement value of the first weight detector is within a production target weight range, smaller than a lower limit value of the production target weight range, or larger than an upper limit value of the production target weight range; ,
First notifying means for notifying an operator of the determination result by the first determining means;
A first indicator for displaying a measured value of the first weight detector;
To supply the first weight detector when the determination result of the first determination means at the first time point is smaller than the lower limit value of the production target weight range when the measured value of the first weight detector is smaller than the lower limit value of the production target weight range. Is taken out of the second weight detector, the weight value of the second weight detector at the second time point after the first time point becomes the first weight value at the first time point. When the weight value of the second weight detector is smaller than the weight value of the second weight detector, the amount of decrease in the weight value of the second weight detector at the second time point with respect to the first time point is calculated. Whether the estimated production weight, which is a value obtained by adding the decrease to the measured value of the first weight detector, is within the production target weight range or smaller than the lower limit value of the production target weight range, is the production target weight range Second determination means for determining whether the value is larger than an upper limit value;
A weighing device comprising: second notification means for notifying an operator of a determination result by the second determination means. The second determination unit calculates a difference between the estimated production weight value and the lower limit value of the production target weight range when it is determined that the estimated production weight value is smaller than the lower limit value of the production target weight range. Configured as
The weighing device according to claim 1, further comprising a second indicator that displays the difference.   The second determination unit calculates a difference between the estimated production weight value and the upper limit value of the production target weight range when it is determined that the estimated production weight value is larger than the upper limit value of the production target weight range. The weighing device according to claim 2, wherein the weighing device is configured to display the difference on the second display. A first type of object to be weighed for supplying to the first weight detector, which is a different type of object to be weighed from the second weight detector, is supplied and supplied. A third weight detector for measuring the weight of the first type of object to be weighed;
The first determination means determines whether the measurement value of the first weight detector is within the target weight range of the first type of weighing object or the lower limit value of the target weight range of the first type of weighing object. It is determined whether it is smaller or larger than the upper limit value of the target weight range of the first type object, and the measurement value of the first weight detector is within the target weight range of the first type object. Later, it is determined whether the measurement value of the first weight detector is within the production target weight range, smaller than the lower limit value of the production target weight range, or larger than the upper limit value of the production target weight range. Configured,
The determination result of the first determination means at the third time point before the first time point is that the measured value of the first weight detector is lower than the lower limit value of the target weight range of the first type of weighing object. If it is smaller, an object to be weighed to be supplied to the first weight detector is taken out from the third weight detector, so that it is before the first time point and after the third time point. When the weight value of the third weight detector at the fourth time point becomes smaller than the weight value of the third weight detector at the third time point. The amount of decrease in the measurement value of the third weight detector at the time is calculated, and the weight of the object to be measured is a value obtained by adding the decrease to the measurement value of the first weight detector at the third time The value is within the target weight range of the first type of weighing object or the value of the first type of weighing object Further comprising a third determination means for determining whether greater than the upper limit of the target weight range of less than or the first type of objects to be weighed from the lower limit of the target weight range,
The weighing device according to claim 1, further comprising third notification means for notifying an operator of a determination result by the third determination means. The second determination unit calculates a difference between the estimated production weight value and the lower limit value of the production target weight range when it is determined that the estimated production weight value is smaller than the lower limit value of the production target weight range. Configured as
When the third determination means determines that the estimated weight value of the weighing object is smaller than a lower limit value of a production target weight range of the first type of weighing object, the third weighing means and the estimated weight value of the weighing object It is configured to calculate a difference from the lower limit value of the target weight range of one type of object to be weighed,
A second indicator for displaying the difference calculated by the second determination means;
The weighing device according to claim 4, further comprising a third indicator that displays the difference calculated by the third determination unit. The second determination unit calculates a difference between the estimated production weight value and the upper limit value of the production target weight range when it is determined that the estimated production weight value is larger than the upper limit value of the production target weight range. , Configured to display the difference on the second display,
When the third determination means determines that the estimated weight value of the weighing object is larger than the upper limit value of the production target weight range of the first type of weighing object, the third weighing means and the estimated weight value of the weighing object The weighing device according to claim 5, wherein the weighing device is configured to calculate a difference from an upper limit value of a target weight range of one kind of object to be measured and display the difference on the third display.   The weighing device according to claim 1, wherein a plurality of the second weight detectors are provided.

Images