JP2016151498A - Supply selection device and method for supplying selection object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new supply selection device and a method for supplying a selection object that are improved more than before.SOLUTION: A method for supplying a selection object is provided for supplying a selection object to a group in order to generate m groups of first to m-th (m is an integer of 2 or more) comprising first to n-th (n is an integer of 2 or more) selection objects, respectively. When a numerical target value for use in finding the selection object comprising the selection object satisfying a predetermined selection condition is A(x,y) and α is a predetermined value larger than 0 with respect to a y-th (y is an integer of 1 or more and n or less) selection object of an x-th (x is an integer of 1 or more and m or less) group, A(x,y)=α×y×(n+1)is satisfied. Then, the target value A(x,y) is used as a supply target value, and the selection object is supplied.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a supply selection apparatus and a method for supplying a selection object.

  From among a plurality of selection objects supplied to the field, a selection object is selected based on a predetermined condition using a numerical value (for example, a weight value) relating to each selection object, and the selected selection object is taken out. There is a (discharge) method. This method has been adopted in various fields, and is also used in the field of weighing devices (see, for example, Patent Documents 1 and 2).

JP 2004-77368 A JP 2004-125422 A

  By the way, in the weighing device, for example, a selection object (object to be weighed) is temporarily held, and there are a plurality of holding units (weighing hoppers) for weighing the weight, and calculation is performed using the weighed weight value. For example, a selection target value or a selection target that is closest to the selection target value is selected, and the selected selection target (selection) is discharged from the holding unit. is there.

  In such a weighing device, a process of selecting a selection target object to be discharged (selected object derivation process) is performed. For example, a selection target is selected while ensuring measurement accuracy in accordance with a change or change in a selection target value. No consideration is given to widening the possible range of the total weight of the selected objects.

  In addition, after the selection object derivation process is performed as described above and the selected selection object (selection object) is discharged, a new selection object is supplied to replenish it. Then, after the weight of the new selection object is weighed, the weight value can be used for the next selection derivation process.

  However, when the next selection object derivation process is performed, if the same number of new selection objects as the selection object previously discharged as the selection object have been supplied and weighing has not been completed, the selection object derivation process is performed. The number of numerical values (weight values) used is reduced. The greater the number of numerical values used in the selection derivation process, the closer to the selected target value, and the smaller the number, the easier it is to move away from the selected target value. Therefore, if there is a change in the number of numerical values used in the selection derivation process that is repeatedly performed, the measurement accuracy is likely to change, which is not preferable.

  An object of the present invention is to provide a new supply selection apparatus and a selection object supply method which are improved compared to the prior art.

In order to achieve the above object, a supply selection apparatus according to an embodiment of the present invention includes n holding means for holding each of first to nth (n is an integer of 2 or more) selection objects. A selection object consisting of the first to mth (m is an integer of 2 or more) m holding units and the selection object that satisfies a predetermined selection condition with respect to the selection object held by the holding means. Calculation means for calculating a numerical value used for obtaining the selection object, and a selection object derivation means for obtaining the selection object that satisfies the selection condition using the numerical value calculated by the calculation means, wherein the selection object is a supply target. Y-th (y is 1 or more and n or less) held in the holding means of the x-th (x is an integer of 1 or more and m or less) of the holding unit. For the selection object, the selection The target value for the number used in Mel A (x, y), when greater than 0 predetermined value alpha,
A (x, y) = α × y × (n + 1) ^x−1
And the target value A (x, y) is set as the supply target value.

  According to this configuration, even if one or less (1 or 0) selection objects are selected as the selection object from each holding unit, the total value of the target values of the numerical values related to the selected selection object ( Including the case where only one selection object is selected as the selection object, hereinafter also referred to as “selection total value”) from the numerical target value for the first selection object of the first holding unit. It can be obtained at intervals of the predetermined value α within the range up to the total value of the target values of the numerical values related to the n-th selection object of all of the 1st to m-th holding units.

  Therefore, even when one or less selection objects are selected as the selection objects from each holding unit, the total value (selection total value) of the numerical values related to the selection objects selected as the selection objects is an interval of the predetermined value α. Thus, it can be obtained over a wide range while ensuring accuracy. In other words, the number of holding units may be determined in accordance with the required range of the selected total value, and therefore the number of holding units can be reduced unless the range of the selected total value needs to be wide. Alternatively, the predetermined value α may be reduced, and in this case, the selected total value can be obtained at a small interval.

  Further, if one or less selection objects are selected from each holding unit as the selection object, each time the selection object is discharged, one holding means is provided for the holding unit from which the selection object is discharged. By supplying a new selection object only to, the number of numerical values used for obtaining the selection object can always be the same.

  The apparatus further comprises supply means for supplying the selection object to the holding means based on the supply target value, and the selection object derivation means is configured such that a sum of numerical values related to all the selection objects included in the selection object is an emission target value. Alternatively, the selection condition is to select the selection object that is closest to the discharge target value and is held by one or less holding means for each of the holding units. And the holding means is configured to discharge the selection object selected for the selection obtained by the selection derivation means, and the supply means New to the holding unit based on the same supply target value as the case where the discharged selection object is supplied each time the selection object selected as the selection object is discharged. The selectable items may be configured to supply to said holding means.

  According to this configuration, even if one or less selection objects are selected from each holding unit as a selection object, a total value (selection total value) of numerical values related to the selection object selected as the selection object is predetermined. It can be obtained over a wide range while ensuring accuracy at the interval of the value α. Therefore, the emission target value can be set in a wide range. Further, it is possible to cope with a change in the emission target value in a wide range.

  In addition, by selecting one or less selection objects from each holding unit as a selection object, each time the selection object is discharged, one supply unit is supplied to the holding unit from which the selection object is discharged. If a new selection object is supplied only to the holding means, the number of numerical values used for obtaining the selection object can always be the same.

  The numerical value used when obtaining the selection object may be a value obtained by converting the weight value of the selection object or the weight value of the selection object into another unit.

  Each of the supply target values indicates a weight value, and based on the supply target value, supply means for supplying the selection object to the holding means, and a predetermined supply target weight that is larger than all the supply target values. An article of the same type as the object to be selected is provided, and further comprises a weighing and holding means for temporarily holding the supplied article and measuring the weight value thereof, wherein the calculating means is a numerical value used when obtaining the selection The selection object derivation means is configured to calculate a weight value of the article to be weighed by the weighing and holding means and all of the selection objects included in the selection object. The sum of the total weight value is the discharge target value or the value closest to the discharge target value, and the selection object is held by one or less holding means for each of all the holding units. Select The article is configured to obtain the selection under the selection condition, and the holding means discharges the selection object selected as the selection, and the article held by the weighing holding means The supply means is the same as the case where each of the holding units is supplied with the discharged selection object every time the selection object selected as the selection object is discharged. It may be configured to supply a new selection object to the holding unit based on the supply target value.

  According to this configuration, even if one or less selection objects are selected as the selection object from each holding unit, the total value of the weight values of the selection objects selected as the selection object (selected as the selection object) This includes the case where there is only one selection object, in which case the weight value of the selection object) can be obtained over a wide range while ensuring accuracy at intervals of the predetermined value α. For this reason, even if there is a certain amount of fluctuation in the weight value of the article held by the weighing and holding means, the selected target object whose sum with the weight value of the article is closest to the discharge target value or the discharge target value is selected. Can be discharged. Moreover, the measurement accuracy can be improved by reducing the predetermined value α.

  In addition, by selecting one or less selection objects from each holding unit as a selection object, each time the selection object is discharged, one supply unit is supplied to the holding unit from which the selection object is discharged. If a new selection object is supplied only to the holding means, the number of numerical values used for obtaining the selection object can always be the same.

  The holding unit has two holding chambers that hold the selection object separately and can be discharged separately, and a weighing hopper that measures the weight of the selection object held in the two holding chambers. And the holding means may be configured by each of the two holding chambers.

  According to this configuration, each holding unit only needs to have one weight sensor for measuring the weight in the weighing hopper. That is, only one weight sensor is required for each holding unit, and the number of weight sensors can be reduced as a whole.

  The holding unit holds a selection object, and can selectively discharge the held selection object in two directions, and measures a weight of the selection object that is held; A memory hopper that is disposed obliquely below the weighing hopper and temporarily holds and discharges the selection object discharged in one direction from the weighing hopper, and the holding means is provided by each of the weighing hopper and the memory hopper. May be configured.

  According to this configuration, each holding unit only needs to have one weight sensor for measuring the weight in the weighing hopper. That is, only one weight sensor is required for each holding unit, and the number of weight sensors can be reduced as a whole.

The supply method of the selection target object which concerns on a certain form of this invention respectively consists of the 1st-n-th (n is an integer greater than or equal to 2) selection target object, the 1st-m-th (m is an integer greater than or equal to 2). A selection object supply method for supplying the selection object to the group in order to generate m groups of the xth group (x is an integer of 1 to m) A target value of a numerical value used when obtaining a selection object composed of the selection object satisfying a predetermined selection condition is selected for the selection object of the yth (y is an integer of 1 or more and n or less). y) When α is a predetermined value greater than 0,
A (x, y) = α × y × (n + 1) ^x−1
The selection object is supplied using the target value A (x, y) as the supply target value.

  According to this method, even if one or less selection objects are selected from each group as the selection object, the total value of the numerical target values related to the selected selection object (the selection object selected as the selection object) Including the case where there is only one object, hereinafter also referred to as “selected total value”), the numerical target values for the first selection object of the first group are used for all the first to m-th groups. It can be obtained at intervals of the predetermined value α within the range up to the total value of the target values of the numerical values related to the nth selection object.

  Therefore, even if one or less selection objects are selected from each group as the selection object, the total value (selection total value) of the numerical values related to the selection object selected as the selection object is an interval of the predetermined value α. It can be obtained over a wide range while ensuring accuracy. In other words, the number of groups may be determined according to the required range of the selected total value, and therefore the number of groups can be reduced if the range of the selected total value does not need to be wide. Alternatively, the predetermined value α may be reduced, and in this case, the selected total value can be obtained at a small interval.

  Further, if one or less selection objects are selected and discharged (taken out) from each group, each time the selection object is discharged, 1 is selected for the group from which the selection object is discharged. By supplying only a new selection object, the number of numerical values used when obtaining the selection object can always be the same.

  The present invention has the above-described configuration, and has an effect of providing a novel supply selection apparatus and selection object supply method that are improved as compared with the prior art. For example, it is possible to obtain a total value (selection total value) of numerical values related to the selection object selected as the selection object over a wide range while ensuring accuracy at intervals of the predetermined value α. In addition, if one or less selected objects are selected and discharged from each group (each holding unit), each time the selected object is discharged, the group in which the selected object is discharged (holding) By supplying only one new selection object to the unit), the number of numerical values used when obtaining the selection object can always be the same.

  The above object, other objects, features, and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings.

FIG. 1 is a schematic diagram illustrating an example of a supply selection apparatus according to the first embodiment. FIG. 2 is a flowchart showing an outline of an example of the operation of the supply selection apparatus according to the first embodiment. FIGS. 3A, 3 </ b> B, and 3 </ b> C are tables showing examples of supply target weights for the y-th selection object held by the x-th holding unit. FIG. 4 is a schematic diagram illustrating another example of the holding unit of the supply selection device according to the first embodiment. FIG. 5 is a schematic diagram illustrating an example of a supply selection apparatus according to the second embodiment. FIG. 6 is a schematic diagram illustrating another example of the holding unit of the supply selection device according to the second embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a specific example of the present invention. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements shown in the following embodiments are merely examples, and do not limit the present invention. In addition, the same or corresponding elements are denoted by the same reference symbols throughout all the drawings, and redundant description thereof may be omitted. In addition, the drawings schematically show each component for easy understanding, and there are cases where the shape, dimensional ratio, and the like are not accurately displayed.

(First embodiment)
FIG. 1 is a schematic diagram illustrating an example of a supply selection apparatus according to the first embodiment of the present invention.

  This supply selection device is a weighing device, and supplies five small supply weighing hoppers 1 to 5, one large supply weighing hopper 6, and objects to be weighed to these weighing hoppers 1 to 6. A supply device 7, a collecting chute 8, an operation indicator 9, and a controller 10 are provided.

  The small supply weighing hoppers 1 to 5 each have two holdings, a first holding chamber (1a to 5a) and a second holding chamber (1b to 5b) for temporarily holding an object to be weighed supplied from the supply device 7. Has a room. In each of the first and second holding chambers 1a to 5a and 1b to 5b, discharge gates G1a to G5a and G1b to G5b for discharging an object to be weighed are provided.

  Each of the small supply weighing hoppers 1 to 5 is provided with weight sensors LC1 to LC5 including load cells and the like, and the weight of the objects to be weighed held by the weighing hoppers 1 to 5 by the weight sensors LC1 to LC5 is determined. The measured value is output to the controller 10. Based on the measured values of the weight sensors LC1 to LC5, the controller 10 calculates the weight of the objects to be weighed held in the holding chambers 1a to 5a and 1b to 5b of the weighing hoppers 1 to 5. For example, in the weighing hopper 1, the controller 10 stores a measured value when an object to be weighed is held only in one of the two holding chambers 1a and 1b, for example, the holding chamber 1a. Then, from the measurement value when the object to be weighed is supplied to the other holding chamber 1b and the object to be weighed is held in both the holding chambers 1a and 1b, the object to be weighed is only in the holding chamber 1a. By subtracting the measured value (stored value) when held, the weight of the object to be weighed held in the other holding chamber 1b is calculated.

  The large supply weighing hopper (weighing holding means) 6 has a single holding chamber for temporarily holding an object to be weighed supplied from the supply device 7, and a discharge for discharging the object to be weighed in this holding chamber. A gate G6 is provided. Further, the weighing hopper 6 for large supply is provided with a weight sensor LC6 composed of a load cell or the like, and the weight of the weighing object held by the weighing hopper 6 for large supply is measured by the weight sensor LC6. It is output to the controller 10. A plurality of weight sensors LC6 may be provided.

  The supply device 7 supplies a predetermined supply target weight to each of the first and second holding chambers 1a to 5a, 1b to 5b of the small supply weighing hoppers 1 to 5 and the large supply weighing hopper 6. It is configured to supply an object to be weighed. The object to be weighed supplied from the supply device 7 is, for example, a granular material, and the supply device 7 includes the first and second holding chambers 1a to 5a, 1b to 5b and the large ones of the small supply weighing hoppers 1 to 5. In order to supply an object to be weighed to each of the supply weighing hoppers 6, for example, a cut gate (not shown, for example, see the cut gate 7 b in FIG. 4) is provided. And it is comprised so that the to-be-measured object of a supply target weight may be supplied by the setting of the opening degree of each cut gate, opening and closing time, etc.

  The collecting chute 8 is disposed below the weighing hoppers 1 to 6 and collects the objects to be weighed discharged from the weighing hoppers 1 to 6 and supplies them to the packaging machine (not shown) from the lower discharge port 8a. Is provided to do.

  The operation indicator 9 is configured using, for example, a touch panel display and the like, and includes input means for performing operations such as start and stop of operation of the weighing device, setting of operation parameters, and the like, an operation speed, and an object to be discharged. Display means for displaying the weight of the object on a screen (display screen).

  The controller 10 includes a CPU, a microcontroller having a ROM and a RAM memory in which the CPU operation program, operation parameters, and the like are stored. The CPU executes the operation program stored in the ROM. Thus, the operation of the entire weighing device is controlled. That is, the controller 10 controls the supply operation of the supply device 7 and also controls the opening / closing operation of the discharge gates of the weighing hoppers 1 to 6. Further, the controller 10 inputs a signal from the operation indicator 9 and outputs a signal such as data to be displayed on the operation indicator 9. The controller 10 may be configured by a single controller that performs centralized control, or may be configured by a plurality of controllers that perform distributed control in cooperation with each other.

  Further, the controller 10 is selected from the objects to be weighed held in the first and second holding chambers 1a to 5a and 1b to 5b of the weighing hoppers 1 to 5 for small supply based on a predetermined selection condition. It also functions as a selection derivation unit that performs a selection derivation process for obtaining a selection.

  In the selection derivation process, for example, the weight value of the object to be weighed held by the large supply weighing hopper 6 and the first and second holding chambers 1a to 5a and 1b to the weighing hoppers 1 to 5 for the small supply. The sum of the weight value of the selected object selected from the objects to be weighed held in each of 5b (the total weight value of all the objects to be weighed included in the selected object) is a predetermined discharge target weight or discharge The selection condition is to select the objects to be weighed that are closest to the target weight and are held in one or less holding chambers for each of the small supply weighing hoppers 1 to 5. I ask for a choice.

  FIG. 2 is a flowchart showing an outline of an example of the operation of the weighing device (processing by the controller 10).

  In step S1, the controller 10 causes the supply device 7 to place the objects to be weighed into the empty large supply weighing hopper 6 that does not hold the objects to be weighed and the first and second holding chambers 1a to 5a and 1b to 5b. Supply.

  Next, in step S2, the controller 10 is held in each of the large supply weighing hopper 6 and the first and second holding chambers 1a to 5a and 1b to 5b based on the measured values from the weight sensors LC1 to LC6. Calculate the weight of the weighing object. Here, the weight of the object to be weighed newly supplied in the immediately preceding step S1 is calculated. Here, the controller 10 and the weight sensors LC1 to LC5 constitute calculation means for calculating the weight of the objects to be held in the first and second holding chambers 1a, 1b to 5a, 5b.

  Next, in step S3, the controller 10 performs the selection derivation process described above to derive a selection.

  Next, in step S4, the controller 10 opens and closes the discharge gates of the first and second holding chambers 1a to 5a and 1b to 5b holding the objects to be weighed selected as the selected items at a predetermined timing. As a result, the objects to be weighed (selected objects) are discharged onto the collecting chute 8 and the objects to be weighed are discharged onto the collecting chute 8 by opening and closing the discharge gate of the large supply weighing hopper 6. The objects to be weighed discharged onto the collective chute 8 are discharged from the discharge port 8a, for example, into a packaging machine.

  Next, returning to step S1, the controller 10 supplies the supply device 7 to the large supply weighing hopper 6 and the first and second holding chambers 1a to 5a and 1b to 5b which are emptied after the object to be weighed is discharged. Supply the object to be weighed. Thereafter, the same processing is repeated.

  In the present embodiment, as the small supply weighing hoppers 1 to 5, those having the first and second holding chambers 1 a to 5 a and 1 b to 5 b are used, and all the holding chambers 1 a to 5 a and 1 b to 5 b are used. It is comprised so that the supply target weight of the to-be-measured object to supply may differ. This supply target weight will be described. The supply target weight of the object to be weighed supplied to the large supply weighing hopper 6 is set to a weight of 90% to 99% of the discharge target weight, for example.

  Here, the weighing hoppers 1 to 5 are the first to fifth holding units, and the first to fifth holding units (the weighing hoppers 1 to 5) are held in the first holding chambers 1a to 5a. The weighing object is set as the first selection object, and the measurement object held in the second holding chambers 1b to 5b is set as the second selection object. That is, in this example, five holding units are provided, and each holding unit is provided with two holding means (first and second holding chambers) to hold the first and second selection objects. .

  First, here, in general, the first to m-th m (m is an integer of 2 or more) holding units are provided, and each holding unit has the first to n-th n (n is an integer of 2 or more). The case where the selection object of () is held will be described. Here, each selection object can be discharged independently from the holding unit. In this example, m = 5 and n = 2.

  The supply target weight is set to A (x, y) with respect to the y-th (y is an integer not less than 1 and not more than n) selection object held in the x-th (x is an integer not less than 1 and not more than m) holding unit. ), The supply target weight A (x, y) is expressed by the following equation (1).

A (x, y) = α × y × (n + 1) ^x−1 (1)
Α is a coefficient having a predetermined value greater than zero.

  Here, for example, when α = 1 and n = 2, the supply target weight A (x, y) is shown in the table shown in FIG. In this table, the unit is, for example, g (gram).

  In this example, since n = 2 and m = 5, if α = 1, in the table shown in FIG. To do. For example, the supply target weight of the first selection object (object to be weighed in the first holding chamber 1a) held by the first holding unit (weighing hopper 1) is 1 g, and the first holding unit (weighing) The supply target weight of the second selection object (object to be weighed in the second holding chamber 1b) held in the hopper 1) is 2 g. That is, 1 g of the weighing object is supplied from the supply device 7 to the first holding chamber 1a of the weighing hopper 1, and 2g of the weighing object is supplied to the second holding chamber 1b.

  Similarly, an object to be weighed is supplied from the supply device 7 to the first holding chamber 2a of the weighing hopper 2 with a supply target weight of 3g, and an object to be weighed is supplied to the second holding chamber 2b with a supply target weight of 6g. Is done. The weighing object is supplied to the first holding chamber 3a of the weighing hopper 3 with a supply target weight of 9g, and the weighing object is supplied to the second holding chamber 3b with a supply target weight of 18g. The weighing object is supplied to the first holding chamber 4a of the weighing hopper 4 with a supply target weight of 27g, and the weighing object is supplied to the second holding chamber 4b with a supply target weight of 54g. In addition, an object to be weighed is supplied to the first holding chamber 5a of the weighing hopper 5 with a supply target weight of 81g, and an object to be weighed is supplied to the second holding chamber 5b with a supply target weight of 162g.

  By supplying the objects to be weighed as described above, the sum of the maximum values of the supply target weights of the selection objects (objects to be weighed) supplied to the holding units (weighing hoppers 1 to 5), that is, here Then, the sum total of the supply target weights of the objects to be weighed supplied to the second holding chambers 1b to 5b is 242 (= 2 + 6 + 18 + 54 + 162) g. In addition, a selection object having a weight of 1 g within a range from 1 g to 242 g can be measured for a single holding chamber without selecting a plurality of holding chamber objects for the same holding unit. This can be realized by selecting an object.

For example, when the selection is 4 g, the first selection object (x = 2, y = 1) held by the second holding unit whose supply target weight is 3 g and the supply target weight is 1 g. What is necessary is just to select the 1st selection target object (x = 1, y = 1) hold | maintained at the 1st holding | maintenance unit which is. If this is described as 4 → 3 (2,1) +1 (1,1),
1 → 1 (1,1)
2 → 2 (1,2)
3 → 3 (2,1)
4 → 3 (2,1) +1 (1,1)
5 → 3 (2,1) +2 (1,2)
6 → 6 (2, 2)
7 → 6 (2,2) +1 (1,1)
8 → 6 (2,2) +2 (1,2)
9 → 9 (3,1)
10 → 9 (3,1) +1 (1,1)
Thus, a selection object having a weight of 1 to 10 g can be realized without selecting a plurality of selection objects from the same holding unit. Similarly, a selection item having a weight of 11 to 242 g can be realized without selecting a plurality of selection objects from the same holding unit. By the way, in the case of 242g,
242 → 162 (5,2) +54 (4,2) +18 (3,2) +6 (2,2) +2 (1,2)

  In this example, for example, the discharge target weight is 10000 g, and about 99% of the discharge target weight is discharged from the large supply weighing hopper 6, and the supply target weight of the object to be weighed supplied to the large supply weighing hopper 6 is 9900 g. If an error of ± 100 g at maximum occurs in the actual supply amount, an object to be weighed within the range of 9800 g to 10000 g is supplied to the large supply weighing hopper 6. In this case, 0 g to 200 g of an object to be weighed may be discharged from the holding chamber of the small supply weighing hoppers 1 to 5 (however, 0 g is not required to be discharged). In this example, as described above, it is possible to obtain a selection having a weight of 1 g in the range from 1 g to 242 g without selecting an object to be weighed in a plurality of holding chambers for the same holding unit. Can be realized easily.

[Comparative Example 1]
On the other hand, as Comparative Example 1, instead of the small supply weighing hoppers 1 to 5, when five weighing hoppers having only a single holding chamber are provided as holding units, they are supplied to five weighing hoppers. When the supply target weight of the object to be weighed is an arithmetic sequence such as 1 g, 2 g, 3 g, 4 g, and 5 g, the weight is 1 g in the range from 1 g to 15 g. You can get a selection of

[Comparative Example 2]
Further, as Comparative Example 2, in the case where five weighing hoppers having only a single holding chamber are provided as holding units instead of the small feeding weighing hoppers 1 to 5, they are supplied to five weighing hoppers. When the supply target weight of the object to be weighed is a geometric sequence such as 1 g, 2 g, 4 g, 8 g, and 16 g, for example, the weight of 1 g interval within the range from 1 g to 31 g You can get a selection of

  As described above, if the number of holding units is the same, in the case of this example, the weight range that can be achieved by the selection can be widened at the same interval (1 g interval) compared to Comparative Examples 1 and 2. it can. In the case of Comparative Examples 1 and 2, if the number of holding units (the number of weighing hoppers) is increased, the weight range that can be achieved by the selection can be widened. The number of weight sensors required for the weighing hopper also increases, which leads to an increase in cost. In addition, an increase in the number of holding units leads to an increase in the size of the weighing device.

  In the case of this example, the number of holding units (weighing hoppers 1 to 5) may be determined according to the required weight range of the selection. The number of units can be reduced. Further, if the value of the coefficient α in the above-described equation (1) is set to α <1 (where α> 0), and the target weight of the object to be weighed supplied to each holding chamber is reduced, the selection can be realized. Although the possible weight range is reduced, the weighing accuracy can be improved.

[Comparative Example 3]
Next, as Comparative Example 3, the supply target weights of the holding chambers 1a, 1b to 5a, 5b of the small supply weighing hoppers 1 to 5 were set to 1 g, 2 g, 4 g, 8 g, 16 g, 32 g,. Explain the case. That is, the supply target weights of the holding chambers 1 a and 1 b of the weighing hopper 1 are 1 g and 2 g, the supply target weights of the holding chambers 2 a and 2 b of the weighing hopper 2 are 4 g and 8 g, and the holding chambers 3 a and 3 b of the weighing hopper 3 are The supply target weights are 16 g and 32 g, the supply target weights of the holding chambers 4 a and 4 b of the weighing hopper 4 are 64 g and 128 g, and the supply target weights of the holding chambers 5 a and 5 b of the weighing hopper 5 are 256 g and 512 g.

  In this case, in the selection derivation process, for example, when a 3 g object to be weighed is selected from the weighing hoppers 1 to 5, the objects to be weighed in both holding chambers 1 a and 1 b of the weighing hopper 1 must be selected. Don't be. For example, when selecting a 12 g object to be weighed, the objects to be weighed in both holding chambers 2a and 2b of the weighing hopper 2 must be selected. In this way, there are cases where a plurality of objects to be weighed must be selected from the same weighing hoppers 1 to 5. In the weighing hoppers 1 to 5, when the objects to be weighed are not supplied to both holding chambers, the objects to be weighed are first supplied to one holding chamber and the weight of the objects to be weighed is measured. An object to be weighed is supplied to the holding chamber, and the weight of the object to be weighed is measured. Therefore, when the objects to be weighed in both holding chambers are selected and discharged, the time until weighing of the objects to be weighed in both holding chambers to be supplied next is completed. It takes about twice as long as the supply and weighing time of the weighing object, which takes a long time. Then, when the selection derivation process is performed in a predetermined cycle, after the objects to be weighed in both holding chambers of a certain weighing hopper are discharged, one of the two holding chambers in the next selection derivation process. Since only the weight of the object to be weighed in the holding chamber is weighed, there is a case where the measurement accuracy is deteriorated or the selection cannot be obtained, and the selection derivation process must be delayed.

  On the other hand, in the case of this example, even if it is not necessary to select both holding chambers of certain weighing hoppers 1 to 5, as described above, a selection with a weight of 1 g in the range from 1 g to 242 g is obtained. Therefore, the selection derivation process can be performed in a predetermined cycle without degrading the weighing accuracy.

  In the present embodiment, when the controller 10 performs the selection object derivation process, selecting a selection object held in one or less holding chambers for each of all holding units (in other words, It is configured to obtain a selection on the condition that selection of two or more selection objects from the same holding unit is prohibited, and one holding is performed for the holding unit from which the selection objects are discharged. By supplying a new selection object only to the chamber, when the next selection object derivation process is performed, the objects to be weighed are held in all the holding chambers, and the weight of the object to be weighed is measured. The selection derivation process can always be performed using the same number of weight values. Therefore, it is possible to prevent a decrease in measurement accuracy due to a decrease in the number of weight values used in the selection derivation process.

  Further, in the above equation (1), when α = 1, the supply target weight A (x, y) in the case of n = 3 is shown in the table shown in FIG. The supply target weight A (x, y) in the case of is shown in the table shown in FIG.

  For example, in the case of n = 3 shown in the table shown in FIG. 3B, if the number of holding units is m = 4, the supply target weight of the selection object (object to be weighed) held in each holding unit. The total sum of the supply target weights of the nth (= 3) selection objects of each holding unit is 255 (= 3 + 12 + 48 + 192) g. And the selection object which becomes the weight of 1g space | interval within the range from 1g to 255g is implement | achieved by selection of a single selection object, without selecting a several selection object with respect to the same holding | maintenance unit. be able to. Similarly, in the case of n = 4 shown in the table shown in FIG. 3C, if the number of holding units is m = 4, the supply target weight of the nth (= 4) selection object of each holding unit. Since the total of 624g becomes a single selection without selecting a plurality of selection objects for the same holding unit, the selection having a weight of 1g interval within the range from 1g to 624g This can be realized by selecting an object.

  Further, in each table shown in FIGS. 3A to 3C, for example, if a value obtained by multiplying the value of each table by 0.5 is set as the supply target weight A (x, y) (g), 0 is obtained. Selections can be obtained at intervals of 5 g. This corresponds to the case where the value of the coefficient α is set to 0.5 in the above-described equation (1). Therefore, it can be said that the values in the tables shown in FIGS. 3A to 3C represent the weight ratio.

  In this example, five holding units (weighing hoppers 1 to 5) are provided. However, the present invention is not limited to this, and a plurality of holding units may be provided. Further, the weighing hoppers 1 to 5 having two holding chambers (holding means) are used as each holding unit. However, the holding unit is not limited to this, and has a plurality of holding means that can hold and discharge an object to be weighed. It only has to be. For example, FIG. 4 shows another example of the holding unit.

  In the case of FIG. 4, the holding unit U1 includes a weighing hopper WB and a memory hopper MB1 disposed obliquely below the weighing hopper WB. In this case, it is assumed that the memory hopper MB2 indicated by the two-dot chain line does not exist.

  The weighing hopper WB has a single holding chamber for temporarily holding an object to be weighed. In this holding chamber, a discharge gate G1 for discharging the object to be measured to the memory hopper MB1 and a collecting chute 8 (FIG. 1). A discharge gate G2 for discharging the objects to be weighed is provided so that the objects to be weighed can be alternatively discharged to the memory hopper MB1 and the collecting chute 8. Further, the weighing hopper WB is provided with a weight sensor LC composed of a load cell or the like, and the weight of the object to be weighed held by the weighing hopper WB is measured by the weight sensor LC, and this measured value is output to the controller 10. The

  The memory hopper MB1 has a single holding chamber for temporarily holding an object to be weighed, and a discharge gate G3 for discharging the object to be weighed is provided in the holding chamber.

  In FIG. 4, as a supply device 7 for supplying an object to be weighed to the holding unit U1 (weighing hopper WB), a cut gate that opens and closes a cylinder part 7a filled with the object to be measured and an opening at the lower end of the cylinder part 7a. 7b is illustrated. In this case, the controller 10 can change the open / close angle or full open time of the cut gate 7b at any time, thereby changing the amount (weight) of the object to be weighed by one supply. ing.

  In FIG. 1, when five holding units U1 of FIG. 4 are used instead of the weighing hoppers 1 to 5, for example, the weighing hoppers k ( Instead of the holding unit U1 used in place of k = 1 to 4), the weighing hopper WB and the memory hopper MB1 of the holding unit U1 used in place of the weighing hopper (k + 1) may be used.

  For example, when the holding unit U1 is used instead of the weighing hopper 1 having the holding chambers 1a and 1b with the supply target weights of 1 g and 2 g, the supply hopper WB and the memory hopper MB1 are supplied with the supply target from the supply device 7. The operation of the cut gate 7b of the supply device 7 is controlled so that the object to be weighed supplied at a weight of 1 g and the object to be weighed supplied at a supply target weight of 2 g are held. Here, the weighing object supplied with the supply target weight of 1 g is held in either the weighing hopper WB or the memory hopper MB1, and the weighing object supplied with the supply target weight of 2 g is held in the other. Is done. An electromagnetic feeder may be used instead of the cut gate 7b. In particular, when the supply target weight is as small as 1 g and 2 g, even if an electromagnetic feeder is used, the supply time does not take long.

  In the case of this holding unit U1, when the object to be weighed in the weighing hopper WB is selected as the selected object and discharged onto the collecting chute 8, the same supply target as that at the time of supplying the object to be weighed discharged from the weighing hopper WB The next object to be weighed is supplied to the weighing hopper WB based on the weight.

  On the other hand, when the object to be weighed in the memory hopper MB1 is selected as the selected object and discharged onto the collecting chute 8, the object to be weighed in the weighing hopper WB is supplied to the memory hopper MB1 and then discharged from the memory hopper MB1. The next object to be weighed is supplied to the weighing hopper WB based on the same supply target weight as that when the object to be weighed is supplied. For example, when a weighing object supplied with a supply target weight of 1 g is held in the weighing hopper WB and a weighing object supplied with a supply target weight of 2 g is held in the memory hopper MB1, the memory hopper MB1 When the object to be weighed is selected and discharged onto the collecting chute 8, the object to be weighed in the weighing hopper WB is supplied to the memory hopper MB1, and then the supply target weight is 2 g to the weighing hopper WB. The object to be weighed is supplied. As a result, the weighing object supplied with the supply target weight of 2 g is held in the weighing hopper WB, and the measurement object supplied with the supply target weight of 1 g is held in the memory hopper MB1.

  A similar operation is performed when the holding unit U1 is used instead of the weighing hoppers 2-5.

  Moreover, the holding unit U2 of FIG. 4 can also be used as the holding unit. The holding unit U2 is further provided with a memory hopper MB2 obliquely below the memory hopper MB1 of the holding unit U1, and the memory hopper MB1 transfers the object to be weighed to the memory hopper MB2. It is configured to be able to discharge alternatively to the collective chute 8.

  This holding unit U2 is an example in the case of n = 3. For example, if the numerical values in the table shown in FIG. 3B are expressed in grams as described above, four holding units U2 are provided. For example, a selection object having a weight of 1 g from 1 g to 255 (= 3 + 12 + 48 + 192) g is measured with respect to the same holding unit, and a plurality of hoppers to be weighed among three hoppers (WB, MB1, MB2). This can be realized by selecting an object to be weighed in a single hopper without selecting.

  In the case of the holding unit U2, when the object to be weighed in the memory hopper MB1 is selected as the selected object and discharged onto the collecting chute 8, the object to be weighed in the weighing hopper WB is the same as in the case of the holding unit U1 described above. Is supplied to the memory hopper MB1, and the next object to be weighed is supplied to the weighing hopper WB based on the same supply target weight as that when the object to be weighed discharged from the memory hopper MB1 is supplied. When the object to be weighed in the memory hopper MB2 is selected as the selected object and discharged onto the collective chute 8, the object to be weighed in the memory hopper MB1 is supplied to the memory hopper MB2, and further the object to be weighed in the weighing hopper WB. After the object is supplied to the memory hopper MB1, the next object to be weighed is supplied to the weighing hopper WB based on the same supply target weight as that when the object to be weighed discharged from the memory hopper MB2 is supplied.

[First Modification]
In this embodiment, as a weighing device of the first modification, for example, in the weighing device of FIG. 1, instead of one large supply weighing hopper 6, a plurality of large supply weighing hoppers (hereinafter referred to as “second large supply”). A weighing hopper ”may be provided. In this case, for example, a 1 / p weight (p is an integer of 2 or more) of the supply target weight of the object to be weighed supplied to the large supply weighing hopper 6 is used as the target supply weight of the second large supply weighing hopper. , P second weighing hoppers for supply may be provided, or more than p may be provided. When p second weighing hoppers for the second large supply are provided, the objects to be weighed of all the p second weighing hoppers for the second large supply are selected from the objects to be weighed by the weighing hoppers 1 to 5 for the small supply. It is discharged with the selection. In addition, when more than p pieces are provided, when obtaining the selection, in combination with the objects to be weighed held in the holding chambers 1a, 1b to 5a, 5b of the weighing hoppers 1-5 for small supply, Select the weighing objects of the p second large supply weighing hoppers that can obtain the combination closest to the discharge target weight, and select the weighing objects of the selected p second large feeding weighing hoppers together with the selections. What is necessary is just to discharge.

  The supply target weight of the weighing object to be supplied to the large supply weighing hopper 6 of the weighing apparatus in FIG. 1 and the supply of the weighing object to be supplied to the second large supply weighing hopper in the first modification example. All of the target weights are larger than the supply target weight of the objects to be weighed supplied to the holding chambers 1a, 1b to 5a, 5b of the small supply weighing hoppers 1-5.

[Second Modification]
In the present embodiment, the weighing device of the second modified example may have a configuration in which the large supply weighing hopper 6 is eliminated from the weighing device of FIG. In this case, for example, the object to be weighed is made of food such as confectionery, and such an object to be weighed can be supplied to the holding chambers 1a, 1b to 5a and 5b of the weighing hoppers 1 to 5. It is configured. The operator can operate the operation display 9 to change (appropriately set) the discharge target weight at any time and set the number of production. As described above, for example, when an object to be weighed is supplied so that a selection of weights at 1 g intervals from 1 g to 242 g can be realized, for example, a product having a discharge target weight of 100 g (selection Production of products with different discharge target weights at any time just by changing the discharge target weights, such as producing 5 products (selected items) with a target discharge weight of 220 g after producing 10 products) Is possible.

  In both cases of the first and second modified examples, a holding unit such as the holding units U1 and U2 may be used instead of the weighing hoppers 1 to 5, for example.

  In this embodiment, for example, the weight of the object to be weighed is weighed with a weighing hopper. However, the present invention is not limited to this, and is configured to measure the volume or the number of objects to be weighed. The volume or number may be set as each value.

(Second Embodiment)
FIG. 5 is a schematic diagram illustrating an example of a supply selection apparatus according to the second embodiment of the present invention.

  This supply selection device is a weighing device, and includes five weighing hoppers 21 to 25, supply devices 71 to 75 for supplying objects to be weighed to the respective weighing hoppers 21 to 25, a collecting chute 28, and an operation display. A device 29 and a controller 30 are provided.

  The weighing hoppers 21 to 25 are first holding chambers (21a to 25a) and second holding chambers (21b to 25b) for temporarily holding the objects to be weighed supplied from the supply devices 71 to 75 provided corresponding to the weighing hoppers 21 to 25, respectively. And two holding chambers. In each of the first and second holding chambers 21a to 25a and 21b to 25b, discharge gates Ga and Gb for discharging an object to be weighed are provided.

  Each of the weighing hoppers 21 to 25 is provided with a weight sensor LC composed of a load cell or the like, and the weight of the object to be weighed held by each weighing hopper 21 to 25 is measured by each weight sensor LC. Is output to the controller 30.

  The supply devices 71 to 75 supply the objects to be weighed with a predetermined supply target heat amount to the first and second holding chambers 21a to 25a and 21b to 25b of the weighing hoppers 21 to 25, respectively. It is configured. Here, the objects to be weighed supplied from the supply devices 71 to 75 to the weighing hoppers 21 to 25 are foods such as confectionery having different types, for example, and have different amounts of heat per unit weight. The amount of heat per unit weight for the objects to be weighed supplied to each of the weighing hoppers 21 to 25 is set by operating the operation indicator 29 and stored in the controller 30 in advance. In addition, each of the supply apparatuses 71-75 can be set as the structure which has two supply hoppers (31, 32) as shown, for example in FIG.

  The collecting chute 28 is disposed below the weighing hoppers 21 to 25, collects the objects to be weighed discharged from the weighing hoppers 21 to 25, and supplies them to the packaging machine (not shown) from the lower discharge port 28a. Is provided to do.

  The operation indicator 29 is configured using, for example, a touch panel display and the like, and includes input means for starting and stopping the operation of the weighing device, setting operation parameters, and the like, an operation speed, and a measured object to be discharged. Display means for displaying the amount of heat of the object on a screen (display screen).

  The controller 30 includes a CPU, a microcontroller having a ROM and a RAM memory in which the CPU operation program, operation parameters, and the like are stored, and the CPU executes the operation program stored in the ROM. Thus, the operation of the entire weighing device is controlled. That is, the controller 30 controls the supply operation of the supply devices 71 to 75 and the opening / closing operation of the discharge gates Ga and Gb of the weighing hoppers 21 to 25. In addition, the controller 30 inputs a signal from the operation indicator 29 and outputs a signal such as data to be displayed on the operation indicator 29. The controller 30 may be configured by a single controller that performs centralized control, or may be configured by a plurality of controllers that perform distributed control in cooperation with each other.

  In addition, the controller 30 is a selected item selected from the objects to be weighed held in the first and second holding chambers 21a to 25a and 21b to 25b of the weighing hoppers 21 to 25 based on a predetermined selection condition. It also functions as a selection derivation means for performing the selection derivation process for obtaining

  In the present embodiment, the controller 30 performs the pre-processing of the selection object derivation process for the objects to be weighed held in the first and second holding chambers 21a to 25a and 21b to 25b of the weighing hoppers 21 to 25, respectively. A conversion process for converting the weight into the amount of heat is performed based on the amount of heat per unit weight of each object to be weighed. In the selection derivation process, for example, based on the calorie conversion value converted in the conversion process, the total calorific value becomes the predetermined discharge target calorie or the value closest to the discharge target calorie, and all the weighing hoppers 21 to 25 For each of them, the selection object is obtained under the selection condition of selecting an object to be weighed held in one or less holding chambers.

  In this case, the weighing hoppers 21 to 25 are the first to fifth holding units, and the first to fifth holding units (the weighing hoppers 21 to 25) are covered by the first holding chambers 21a to 25a. The weighing object is set as the first selection object, and the measurement object held in the second holding chambers 21b to 25b is set as the second selection object. That is, in this example, five holding units are provided, and the first and second selection objects are held in each holding unit.

  As in the description in the first embodiment, the first to m-th m (m is an integer of 2 or more) holding units are provided, and each holding unit has first to n-th n (n Is a case where a selection object of 2) is held. Here, each selection object can be discharged independently from the holding unit. In this example, m = 5 and n = 2.

  Then, regarding the y-th (y is an integer not less than 1 and not more than n) selection object held in the x-th (x is an integer not less than 1 and not more than m), the supply target heat amount is set to A (x, y ), The supply target heat amount A (x, y) is expressed by the following equation (1) used in the first embodiment.

A (x, y) = α × y × (n + 1) ^x−1 (1)
Here, for example, when α = 1 and n = 2, the supply target heat amount A (x, y) is shown in the table shown in FIG. In this table, the unit is, for example, kcal (1 kcal = 4.184 kJ).

  In this example, since n = 2 and m = 5, if α = 1, in the table shown in FIG. To do. For example, the supply target heat amount of the first selection object (object to be weighed in the first holding chamber 21a) held by the first holding unit (weighing hopper 21) is 1 kcal, and the first holding unit (weighing) The supply target heat amount of the second selection object (object to be weighed in the second holding chamber 21b) held by the hopper 21) is 2 kcal. That is, a 1 kcal object to be weighed is supplied from the supply device 71 to the first holding chamber 21a of the weighing hopper 21, and a 2 kcal object to be weighed is supplied to the second holding chamber 21b.

  Similarly, an object to be weighed is supplied from the supply device 72 to the first and second holding chambers 22a and 22b of the weighing hopper 22 with a supply target heat amount of 3 kcal and 6 kcal, and the first and second of the weighing hopper 23 are supplied from the supply device 73. 2 The objects to be weighed are supplied to the holding chambers 23a and 23b using 9 kcal and 18 kcal as the supply target heat amount, and 27 kcal and 54 kcal are supplied from the supply device 74 to the first and second holding chambers 24a and 24b of the weighing hopper 24. The weighing object is supplied from the supply device 75 to the first and second holding chambers 25a and 25b of the weighing hopper 25 using 81 kcal and 162 kcal as supply target heat amounts.

  In addition, it is comprised so that each to-be-measured object may be supplied to the holding chambers 21a, 21b-25a, 25b of each measurement hopper 21-25 based on the weight conversion value which converted each supply target calorie | heat amount into the weight.

  The procedure of the process by the controller 30 (the procedure of the operation of the weighing device) can be shown by, for example, a flowchart that is substantially the same as FIG. However, in the present embodiment, the above-described conversion process is performed before the selection derivation process (step S3). The selection derivation process here is as described above. Further, since there is no large supply weighing hopper 6 as in the weighing apparatus of FIG.

  In this example, the operator can operate the operation indicator 29 to change (appropriately set) the value of the discharge target heat amount at any time, and to set the number of production. . As described above, when the target supply heat quantity is set, a selection of heat quantity at intervals of 1 kcal can be obtained within the range from 1 kcal to 242 kcal. For example, after producing 10 products (selected items) with an emission target heat quantity of 100 kcal, the value of the emission target heat quantity is changed so that five products (selected items) with an emission target heat quantity of 220 kcal are produced. It is possible to produce products with different target emissions at any time.

  Also in the present embodiment, as in the first embodiment, when the controller 30 performs the selection derivation process, one or less holding chambers are provided for each of all the holding units (the weighing hoppers 21 to 25). The selection object is obtained on the condition that the selection object consisting of the objects to be weighed held in the container is selected (in other words, the selection of two or more selection objects from the same holding unit is prohibited). When the next selection object derivation process is performed by supplying a new selection object only to one holding chamber to the holding unit from which the selection object is discharged, all the holding chambers Since the object to be weighed is held and the weight of the object to be weighed is weighed, the selection object derivation process can always be performed by using the same number of weight value calorific value conversion values. Therefore, it is possible to prevent a decrease in accuracy due to a decrease in the number of numerical values (weight value calorie conversion value) used in the selection derivation process.

  Even if one or less selection objects are selected from each holding unit as the selection object, the heat quantity that can be realized by the selection object can be widened while ensuring the accuracy at intervals of the predetermined value α. .

  In addition, since the number of holding units (weighing hoppers 21 to 25) may be determined according to the required heat amount range of the selection, if the heat amount range of the selection does not need to be wide, the number of holding units is reduced. can do. In addition, if the value of the coefficient α in the above-described equation (1) is set to α <1 (where α> 0) and the target heat supply of the objects to be weighed supplied to the holding chambers is reduced, the selection can be realized. Although the possible heat range is reduced, the accuracy can be improved.

  In this example, five holding units (weighing hoppers 21 to 25) are provided. However, the present invention is not limited to this, and a plurality of holding units may be provided. In addition, although the weighing hoppers 21 to 25 having two holding chambers (holding means) are used as each holding unit, the holding unit is not limited to this, and has a plurality of holding means that can hold and discharge an object to be weighed. It only has to be. For example, a holding unit U1 as shown in FIG. 6 may be used.

  Similar to the holding unit U1 of FIG. 4, the holding unit U1 includes a weighing hopper WB having a single holding chamber and a memory hopper MB1 having a single holding chamber. Here, each of the supply devices 71 to 75 has two supply hoppers 31 and 32, and is configured such that an object to be weighed having a target supply heat amount is supplied to each of the supply hoppers 31 and 32. The supply hoppers 31 and 32 are provided with discharge gates 31G and 32G, respectively, so that the objects to be weighed can be discharged to the weighing hopper WB.

  For example, when an object to be weighed having a target supply heat amount of 1 kcal and an object to be weighed having a target supply heat amount of 2 kcal are held in the holding unit U1, one of the supply hoppers 31 has a target supply heat amount of 1 kcal. The object to be weighed is supplied to the other supply hopper 32 with a target supply heat amount of 2 kcal. For example, when the weighing object of one supply hopper 31 is supplied to the weighing hopper WB, the controller 30 determines the weight of the weighing object in the weighing hopper WB based on the measurement value of the weight sensor LC. Calculate the weight and convert the weight to calorie. The same applies when the object to be weighed in the other supply hopper 32 is supplied to the weighing hopper WB. In the selection object derivation process, the heat amount calculated when the object to be weighed in the memory hopper MB1 is held by the weighing hopper WB is used.

  In this example, the supply target value of the object to be weighed is the supply target heat amount, and the discharge target value is the discharge target heat amount. However, instead of the heat amount, a numerical value in other units, for example, a monetary amount is used. Also good. In this case, the objects to be weighed supplied to each holding unit (for example, the weighing hoppers 21 to 25 and the holding unit U1) are objects to be weighed having different amounts per unit weight, and the objects to be weighed supplied to each holding unit. The amount of money per unit weight is set by operating the operation indicator 29 and stored in the controller 30 in advance.

  In the present embodiment, the object to be weighed is automatically supplied from the supply devices 71 to 75 to the holding unit. However, the object to be weighed may be supplied by a person such as an operator. For example, an object to be weighed to be supplied to each holding chamber 21a, 21b to 25a, 25b of the weighing hoppers 21 to 25 is prepared in advance so that an operator or the like supplies an object to be weighed corresponding to the holding chamber. Also good. Similarly, in the first embodiment shown in FIG. 1, in the case of the second modified example in which the large supply weighing hopper 6 is not provided, the operation is performed to the holding chambers 1a, 1b to 5a, 5b of the weighing hoppers 1 to 5. An object to be weighed may be supplied by a person such as a person.

  In this embodiment, for example, the weight of the object to be weighed is measured with a weighing hopper. However, the present invention is not limited to this, and the volume or the number of objects to be weighed may be measured. In this case, the measured volume or number of the objects to be weighed may be converted into a numerical value in another unit such as the amount of heat and the amount of money set as the supply target value and the discharge target value.

  In the first and second embodiments, the method for supplying a selection object according to the present invention has been described as an example of application to a weighing device. However, the present invention is not limited to this, and genetic engineering and color matching are also possible. You may apply.

  From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

  The present invention provides, for example, a supply selection device and a selection object that can obtain a total value of numerical values related to a selection object selected as a selection object over a wide range while ensuring accuracy at intervals of a predetermined value. This is useful as a supply method.

1-5 Small feeding weighing hoppers 1a, 1b-5a, 5b Holding chamber 6 Large feeding weighing hopper LC, LC1-LC6 Weight sensors 7, 71-75 Feeding devices 10, 30 Controllers 21-25 Weighing hoppers 21a, 21b -25a, 25b Holding chamber U1, U2 Holding unit WB Weighing hopper MB1, MB2 Memory hopper

Claims (7)

1st to m-th (m is an integer of 2 or more) m holding units comprising n holding means for holding each of the first to n-th (n is an integer of 2 or more) selection objects; ,
With respect to the selection object held by the holding means, calculation means for calculating a numerical value used when obtaining a selection object composed of the selection object that satisfies a predetermined selection condition;
A selection derivation means for obtaining the selection that satisfies the selection condition using a numerical value calculated by the calculation means;
The selection object is configured to be supplied to the holding unit based on a supply target value,
The selection is obtained for the selection object of the yth (y is an integer of 1 to n) held in the holding means of the xth (x is an integer of 1 to m). When the target value of the numerical value used at the time is A (x, y) and α is a predetermined value larger than 0,
A (x, y) = α × y × (n + 1) ^x−1
And the target value A (x, y) is set as the supply target value.
Feed selection device. A supply means for supplying the selection object to the holding means based on the supply target value;
The selection derivation means includes:
The sum of the numerical values related to all of the selection objects included in the selection object is the emission target value or the value closest to the emission target value, and is less than or equal to one for each of the holding units. Selecting the selection object held in a means to select the selection object, and determining the selection object,
The holding means is
Configured to discharge the selection object selected for the selection obtained by the selection derivation means;
The supply means includes
For each of the holding units, a new selection target based on the same supply target value as when the discharged selection target is supplied each time the selection target selected as the selection is discharged Configured to supply an object to the holding means;
The feed selection device according to claim 1. The numerical value used when obtaining the selection object is a value obtained by converting the weight value of the selection object or the weight value of the selection object into another unit.
The feed selection device according to claim 1 or 2. Each of the supply target values indicates a weight value, and supply means for supplying a selection object to the holding means based on the supply target value;
An article of the same type as the selected object is supplied on the basis of a predetermined supply target weight which is a value greater than all the supply target values, and weighing holding means for temporarily holding the supplied article and measuring the weight value In addition,
The calculating means includes
The numerical value used when obtaining the selection object is configured to calculate a weight value of the selection object,
The selection derivation means includes:
The sum of the weight value of the article weighed by the weighing and holding means and the total weight value of all the selection objects included in the selection object is the discharge target value or the value closest to the discharge target value, and With respect to each of all the holding units, the selection condition is to select the selection object held in one or less holding means, and the selection object is obtained.
The holding means is configured to discharge the selection object selected as the selection, and to discharge the article held by the weighing holding means,
The supply means includes
For each of the holding units, a new selection target based on the same supply target value as when the discharged selection target is supplied each time the selection target selected as the selection is discharged Configured to supply an object to the holding means;
The feed selection device according to claim 1. The holding unit is
A measuring hopper that has two holding chambers that hold the selection object separately and can be separately discharged, and that weighs the selection object held in the two holding chambers;
The holding means is constituted by each of the two holding chambers,
The supply selection apparatus in any one of Claims 1-4. The holding unit is
A weighing hopper that holds the selection object and can selectively discharge the holding selection object in two directions, and weighs the weight of the selection object that is held;
A memory hopper that is disposed obliquely below the weighing hopper and temporarily holds and discharges the selection object discharged in one direction from the weighing hopper;
The holding means is constituted by each of the weighing hopper and the memory hopper,
The supply selection apparatus in any one of Claims 1-4. In order to generate 1st to m-th (m is an integer of 2 or more) m groups, each of which is composed of first to n-th (n is an integer of 2 or more) selection objects, the selection object A method for supplying a selection object, wherein
The selection object satisfying a predetermined selection condition with respect to the y-th selection object (y is an integer of 1 to n) in the x-th group (x is an integer of 1 to m) When the target value of the numerical value used when obtaining the selection is A (x, y) and α is a predetermined value greater than 0,
A (x, y) = α × y × (n + 1) ^x−1
And supplying the selection object with the target value A (x, y) as a supply target value.
Supply method of selection object.

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