JP3917064B2 - Weighing seasoning system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a weighing seasoning system.
[0002]
[Prior art]
Conventionally, as in Patent Document 1 below, a seasoning system has been proposed in which an amount of seasoning according to the measured value of each group of objects to be weighed upstream is applied to the object to be weighed.
In this apparatus, since an appropriate amount of seasoning is applied according to the measurement value of each group of objects to be weighed, the seasoning can be made uniform.
However, in this apparatus, there is no means for detecting the group of objects to be weighed when seasoning is not performed due to a trouble with the seasoning apparatus. It was.
[0003]
On the other hand, as in the system of Patent Document 2 below, the weighing value of each weighing object group from the upstream weighing device and the weight value obtained by weighing the weighing object group with the downstream weight checker are added together. An apparatus for taking a difference and determining whether or not a group of objects to be measured is appropriate has been proposed. In this apparatus, it is possible to detect the excess or deficiency of articles by changing the reference value of the weight checker each time according to each group of items to be measured and corresponding to each group of articles.
However, this apparatus can only determine the excess or deficiency of articles, and cannot determine the appropriateness of the seasoning.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-171913
[0005]
[Patent Document 2]
JP 2000-229611 A
[0006]
[Problems to be solved by the invention]
It is an object of the present invention to provide a metered seasoning system that can ensure the proper quality of seasoning.
[0007]
[Means for Solving the Problems]
In order to achieve the present invention, the first invention includes a weighing device for weighing an article, and a seasoning that is arranged downstream of the weighing device and that is seasoned by supplying a seasoning having a weight according to the article. A weighing seasoning system comprising a device and a weight checker disposed downstream of the seasoning device and measuring the weight of the seasoned article, wherein the weighing weight of the article weighed by the weighing device and the seasoning Based on the setting means for setting a reference value based on weight, the reference value, a threshold value based on the weight of the seasoning according to the article, and the checker measurement weight measured by the weight checker, according to the seasoning amount of the article And a sorting section for sorting.
[0008]
In the first invention, the checker measured weight Wd is compared with the reference value ΣW, and the excess / deficiency (deviation) Δ = Wd−ΣW is compared with the threshold value SHi. If the article does not come off during the conveyance, the excess / deficiency Δ varies depending on the seasoning amount actually added.
Therefore, knowing the excess / deficiency amount Δ of seasoning from the deviation between the checker measured weight Wd and the measured weight Wc before seasoning ensures the appropriateness of seasoning. That is, the articles can be sorted by the sorting unit according to the seasoning state. In addition, the quality of the seasoning and the seasoning control can be performed only by adding software using a conventional weight checker.
[0009]
In the first invention, it is preferable that a lower limit value and / or an upper limit value corresponding to the measured weight Wc of the article is set as the threshold value SHi, and a plurality of the upper limit value and / or the lower limit value are set.
[0010]
By setting a plurality of upper limit values and lower limit values, ranking can be performed in addition to pass / fail determination.
In addition, as the threshold value SHi, a constant value may be adopted for each type of article, but if ranking or pass / fail judgment is performed based on the actually measured weight Wc of the article, more accurate ranking or A pass / fail decision can be made.
[0011]
In the first invention, it is preferable to set the weight of the seasoning, that is, the value corresponding to the measured weight of the article weighed by the weighing device, as the minimum lower limit value. This is because it is possible to eliminate those which are not seasoned based on the minimum lower limit value.
Therefore, the minimum lower limit value is set to a value approximate to the checker measurement weight Wd obtained when the seasoning is not seasoned at all.
[0012]
On the other hand, the second invention is a weighing device for weighing an article, a seasoning device that is arranged downstream of the weighing device and that seasons by supplying a seasoning having a weight according to the article, and the seasoning device A weighing seasoning system disposed downstream of the weighing device and comprising a weight checker for measuring the weight of the seasoned article, wherein the weighing and weighing system is controlled based on the measured weight of the article weighed by the weighing device and the weight of the seasoning. Setting means for setting a reference value for the control, and control means for controlling the amount of seasoning by the seasoning device based on the checker measured weight measured by the weight checker and the reference value.
[0013]
In the second invention, the measured weight Wd of the checker is compared with the reference value ΣW, and the excess / deficiency (deviation) Δ = Wd−ΣW is known. If the article does not come off during the conveyance, the excess / deficiency Δ varies depending on the seasoning amount actually added. Therefore, knowing the excess / deficiency Δ ensures the appropriateness of seasoning. In other words, a predetermined amount of seasoning can be added by feedback controlling the amount of addition with the excess / deficiency amount Δ. In addition, the quality of the seasoning and the seasoning control can be performed only by adding software using a conventional weight checker.
[0014]
In the present invention, the actual addition amount Wr of the seasoning actually added to the article is calculated from the checker measurement weight Wd and the article measurement weight Wc measured by the weighing device, and the seasoning device It is preferable to perform supply control of the seasoning of the seasoning apparatus based on the weight Ws of the seasoning supplied and the actual addition amount Wr. By comparing the actual addition amount Wr and the weight Ws of the supplied seasoning, more appropriate seasoning addition control can be performed.
[0015]
In the present invention, when a packaging machine for packaging the article is provided between the seasoning device and the weight checker, the reference value ΣW has a weight Wb of a packaging bag for packaging the article with the packaging machine. Is preferably set in consideration of the above.
It is possible to accurately check the weight of the actual product by measuring the weight after being accommodated in the packaging material. In addition, since a more appropriate reference value ΣW can be set in consideration of the weight of the packaging material, an accurate weight check can be performed.
[0016]
The seasoning device of the present system preferably supplies the weight Ws of the seasoning according to the measured weight Wc of the article weighed by the weighing device.
Since the addition amount can be changed according to the actual amount of the article, variation in taste can be reduced.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
overall structure:
In FIG. 1, the present weighing and seasoning system includes a conveyor 100, a combination weighing device 1, a seasoning device 20, a bag making and packaging machine 200, a rising conveyor 60, a seal checker 61, a weight checker 300, and a shaker from upstream to downstream. A dispensing device (sorting unit) 62 is provided. The conveyor 100 drops the article M, which is an object to be weighed, onto the central portion of the dispersion feeder 2 of the combination weighing device 1. Note that several or many articles M are collected and then packed into a product M.
[0018]
Combination weighing device 1:
As shown in FIG. 2, the dispersion feeder 2 and the supply troughs 3i of the combination weighing device 1 vibrate by driving the vibration exciter so that the articles M on the dispersion feeder 2 are placed downstream of the supply troughs 3i. It supplies to many pool hoppers 4i provided. Each of these pool hoppers 4i is provided with a gate 5i and temporarily stores and stores the articles M supplied and received from the supply troughs 3i. A weighing hopper 6i is provided downstream of each pool hopper 4i. Each of these weighing hoppers 6i is provided with a weighing head and a gate 8i provided with a weight detector 7i for detecting the weight of the article M put into the weighing hopper 6i from the pool hopper 4i. A large collective discharge chute 9 is provided below the gate 8i. As will be described later, by combining the weights of the articles M detected by the respective weight detectors 7i, the articles M are collected together as a target value. Or it is set as the value close | similar to a target value, and the articles | goods M are dropped to the seasoning apparatus 20 of FIG.
[0019]
Seasoning device 20:
As shown in FIG. 3, the seasoning device 20 performs seasoning by supplying the seasoning S to the article M, and includes a transport unit 24 including a screw conveyor and a seasoning supply device 40. . The article M dropped into the transport unit 24 from the collective discharge chute 9 via the take-in chute 17 is transported in a substantially horizontal direction by the spiral blade 29 in the transport unit 24.
Here, as shown in FIGS. 4 (a) to 4 (d), the products M in the transport unit 24 accumulate in the lower part of the transport unit 24 and are partitioned (# 1-#) by the rotating spiral blades 29. 6) It is transported as it is. That is, the articles M are divided into articles Mi that are weighed by the combination weighing device 1 and grouped together, and are conveyed so as not to cross each other.
[0020]
The seasoning supply device 40 is provided above the transport unit 24 in FIG. The seasoning supply device 40 includes spray guns 41 and 42 that spray the seasoning S into the transport unit 24. The spray guns 41 and 42 are connected to an air compressor 44. A predetermined amount of powdery seasoning S stored in the charge tank 45 is measured by a screw feeder 46, and the air pressure from the air compressor 44 causes the spray guns 41 and 42 to feed the powder seasoning S into the transport unit 24. Is injected into.
[0021]
As described above, since the articles Mi in FIG. 4 are separately divided and conveyed while being bundled, the injection guns 41 and 42 correspond to the articles Mi for each of the divided articles Mi. A predetermined amount of seasoning S is sprayed.
The article M is seasoned by the seasoning apparatus 20 and then sent to the bag making and packaging machine 200.
4 may be fixed to the spiral blade 29, and the article M may be agitated by rotating the stirring bar 28 together with the spiral blade 29 in the transport unit 24.
[0022]
3 is added to a weight detector 49 such as a load cell. The seasoning control unit 21 (FIG. 5) that controls the seasoning supply device 40 detects the weight before and after injecting the seasoning S from the spray guns 41 and 42 to one section (#i) in FIG. The weight signal from the container 49 is received, and the supply weight Ws of the seasoning S supplied for each article Mi in one section is calculated.
[0023]
Bag making and packaging machine 200:
The bag making and packaging machine 200 in FIG. 1 is a so-called vertical pillow packaging machine, in which a sheet-like film F unwound from a film roll Fr is welded with a vertical sealer 201 to form a cylindrical shape, and falls from above. In the state where M is filled in the cylindrical film F, the upper end (film end) F1 of the article M in the film F is welded (sealed) with the end sealer 202 and is cut continuously. Packaging (for example, see Japanese Patent Laid-Open No. 4-28105). The packaged product M falls downward and is conveyed onto the seal checker 61 by the rising conveyor 60.
[0024]
The seal checker 61 conveys the product M to the downstream while pressing the product M from above with the presser 61a, and inspects the sealing failure of the packaging bag. The product M is conveyed to the weight checker 300 after the seal check.
[0025]
Weight checker 300:
The weight checker 300 includes a weight detector 305 such as a load cell for measuring the weight of the product M, and a conveyor 303 supported on the weight detector 305. The weight checker 300 measures the weight of each product M while conveying the product M. After the measurement, the product M is conveyed from the weight checker 300 to the sorting device 62.
[0026]
Sorting device 62:
As will be described later, the sorting device 62 sorts the products M by sorting them, discharges them out of the system if they are defective, and transports them downstream if they are non-defective products. For non-defective products, ranking is performed as necessary.
[0027]
Control configuration:
As shown in FIG. 5A, the combination weighing device 1, the seasoning device 20, the bag making and packaging machine 200, and the weight checker 300 include controllers 10 and 22 and control units 21 and 23 for controlling the respective devices, respectively. I have. Each of the controllers 10 and 22 and the control units 21 and 23 is connected to a remote controller (remote controller) 50 via an interface (not shown).
[0028]
Each weight detector 7 i of the combination weighing device 1 outputs the detected weight to the multiplexer 70. The multiplexer 70 outputs each measurement signal to the A / D converter 71 when a predetermined synchronization signal is applied. The A / D converter 71 converts each measurement signal into a measurement value composed of a digital signal, and outputs the measurement value to the combination controller 10.
[0029]
The combination controller 10 calculates a combination measurement value of the article M in which one or more of the measurement values are combined, compares the combination measurement value with a predetermined target value, and the combination measurement value is equal to or close to the target value. A combination is obtained, the gate 8i of FIG. 2 corresponding to the combination is opened, the article M is combined from the weighing hopper 6i to the collective discharge chute 9, and the article M is discharged to the seasoning device 20.
On the other hand, the combination controller 10 in FIG. 5 transmits the combination measurement value used for the combination to the remote controller 50 as the measured weight of the article (hereinafter referred to as “measurement value before seasoning”) Wc.
[0030]
A seasoning control unit 21 is connected to the seasoning device 20. When the seasoning control unit 21 receives a supply weight (weight of seasoning) Ws of a seasoning S, which will be described later, from the remote controller 50 for each article, the seasoning control unit 21 sends, for each article M in the transport unit 24, from the seasoning supply device 40. The seasoning S of the supply weight Ws is added.
[0031]
A packaging controller 22 is connected to the bag making and packaging machine 200. When receiving the length and width of the bag from the remote controller 50, the packaging controller 22 creates a bag based on the bag making information and packs the article M to which the seasoning S is added into the bag.
[0032]
A weighing unit 34 is connected to the checker control unit 23. When the product M is conveyed on the conveyor 303, the weighing means 34 converts the output from the weight detector 305 into a weight signal and outputs it to the checker control unit 23. The checker control unit 23 calculates a checker measurement weight Wd based on the weight signal and transmits it to the remote controller 50.
[0033]
As will be described later, the remote controller 50 determines the quality of the products M and ranks them based on signals from the devices, and performs feedback control of the seasoning device 20. On the other hand, a sorting device 62 is connected to the remote controller 50, and the remote controller 50 outputs a sorting signal to the sorting device 62 in accordance with the pass / fail judgment or ranking. The distribution device 62 distributes the products M for each rank based on the distribution signal or discharges the products M out of the system.
[0034]
In addition to the controllers 10 and 22 and the control units 21 and 23, other devices such as a rising conveyor 60 and a seal checker 61 are connected to the remote controller 50 in FIG. For the sake of simplification of explanation, explanation of the control of the other devices will be omitted.
[0035]
Remote controller 50:
The remote controller 50 is connected to a touch screen 54 for performing various displays and performing various inputs by touching the screen.
The remote controller 50 includes a CPU 51 and a storage unit 52. The storage unit 52 includes a product information storage unit 52a. As shown in FIG. 5B, in the product information storage unit 52a, product information such as product name, target value, bag width and bag length is associated with each product for each product number. Stored in advance.
The storage unit 52 stores values for calculating a supply weight Ws, threshold values SHi, SLi, and the like, which will be described later.
[0036]
System behavior:
Next, the operation of this system will be described with reference to the flowchart of FIG. 6, focusing on the calculation contents of the CPU 51 of the remote controller 50.
First, an operator performs a predetermined operation and touches the touch screen 54 of the remote controller 50 to designate a product, and then starts the system.
In step S1, the CPU 51 reads the target value of the designated product from the product information storage unit 52a and transmits it to the combination controller 10.
[0037]
On the other hand, the CPU 51 transmits the bag width, the bag length, and the like of the product M read from the product information storage unit 52a to the packaging controller 22, and the tare weight (the weight of the packaging bag) based on the bag length and the like. Wb is calculated. Specifically, the tare weight Wb is calculated based on, for example, the weight per unit area of the film used for packaging, the film width, and the film feed amount.
[0038]
combination;
The combination controller 10 combines the articles M on the basis of the target value, causes the seasoning apparatus 20 to discharge the articles M, and sets the combined weight value as the pre-flavored measurement value Wc to the remote controller 50. Send.
In step S2, when the remote controller 50 receives the measurement value Wc before seasoning, the process proceeds to step S3.
[0039]
Seasoning;
In step S3, the CPU 51 calculates the supply weight Ws of the seasoning S based on the pre-seasoning measured value Wc, and proceeds to step S4. The supply weight Ws is set as a predetermined ratio with respect to the measurement value Wc before seasoning, for example, by multiplying the measurement value Wc before seasoning by a predetermined value.
In addition, you may set the ratio of the measured value Wc before seasoning with respect to the supply weight Ws to a different value for every kind of goods.
[0040]
In step S <b> 4, the remote controller 50 transmits the supplied weight Ws to the seasoning control unit 21. The seasoning control unit 21 causes the seasoning device 20 to spray the seasoning S of the supply weight Ws based on the received supply weight Ws, seasons the product M, and proceeds to step S5.
[0041]
Here, the measured value Wc before seasoning is the weight of the articles M gathered together by the combination as described above, and thus becomes slightly different every time when it is discharged. Therefore, in order to keep the taste of the product M constant, it is preferable to add a seasoning S corresponding to the measurement value Wc before seasoning for each measurement value Wc before seasoning.
As described above, the article M shown in FIG. 4 is transported in the transport unit 24 while being partitioned by the combination weighing device 1. Therefore, in order to maintain a certain taste, the seasoning S of the supplied weight Ws calculated for each measured value Wc before seasoning is added to the product M corresponding to the supplied weight Ws.
[0042]
Packaging;
After the seasoning, the article M is packaged by the bag making and packaging machine 200 to become the product M, and is conveyed downstream.
In step S5, every time packaging by the bag making and packaging machine 200 is completed, the remote controller 50 receives a packaging completion signal from the packaging controller 22, and proceeds to step S6.
[0043]
Reference value ΣW calculation;
In step S6, the CPU (setting means) 51 calculates and sets the reference value ΣW of the product M, that is, the total weight of the product M for each product M based on the following equation (1).
Reference value ΣW = Measured value Wc before seasoning + Supply weight Ws + Tare weight Wb (1)
[0044]
Threshold calculation;
In step S7, the CPU 51 calculates thresholds SHi and SLi for each bag to be packed based on the pre-seasoned measured value Wc, and proceeds to step S8. As shown in FIG. 7, the CPU 51 multiplies the measured value Wc before seasoning by a predetermined value to obtain an upper limit threshold SH1 to SH3, a lower limit threshold SL1 to SL3, and a lower limit threshold SL. _MIN Is calculated. As the upper limit threshold, a larger threshold is set from the first upper limit threshold SH1 to the third upper limit threshold SH3. On the other hand, the lower limit threshold ranges from the first lower limit threshold SL1 to the third lower limit threshold SL3 to the lowest limit threshold SL. _MIN A threshold value consisting of a smaller negative number is set. For example, in this embodiment, as an example of the supply weight Ws, the supply weight Ws is set to 5% of the pre-season measurement value Wc (Wc × 0.05), and the pre-season measurement value Wc is calculated to calculate the threshold value. The value to be multiplied is set in increments of 0.01.
[0045]
The minimum threshold SL _MIN As described later, is a threshold value for use in eliminating unseasoned items or items that are missing during transportation, and is set to a supply weight Ws or a negative value approximate to the supply weight Ws. preferable. For example, in the present embodiment, the negative number is set to a negative number −0.04 of 0.04 that approximates the value 0.05 for calculating the pre-flavoring measurement value Wc.
[0046]
Weight check;
The product M packaged by the bag making and packaging machine 200 is supplied to the weight checker 300 through the rising conveyor 60 and the seal checker 61 of FIG.
The checker control unit 23 in FIG. 5A calculates the checker measurement weight Wd based on the weight signal from the weighing means 34 and transmits it to the remote controller 50.
In step S8, the remote controller 50 receives the checker measured weight Wd and proceeds to step S9.
[0047]
In step S9, the CPU 51 calculates an excess / deficiency amount Δ for each product M based on the following equation (2).
Excess or deficiency Δ = Checker measurement weight Wd−reference value ΣW (2)
Here, the measured value Wc before seasoning is a value actually measured by the weight detector 7 i of the combination weighing device 1. Further, since an error is unlikely to occur in the amount of film fed by the bag making and packaging machine 200, the tare weight Wb is generally an accurate value. On the other hand, not all of the seasoning sprayed into the conveying unit 24 adheres to the surface of the article, but a part of the seasoning adheres to the surface of the article and the rest accumulates at the bottom of the screw conveyor. That is, the supply weight Ws is different from the actual addition amount Wr of the seasoning actually added to the article.
Therefore, the excess / deficiency Δ (= checker measured weight Wd−reference value Σw) obtained by subtracting the reference value ΣW from the checker measured weight Wd actually measured by the weight checker 300 is the weight of the seasoning S actually added, This is the difference between the supply weight Ws of the seasoning S to be injected, that is, the weight of the seasoning S to be added.
[0048]
After step S9, based on the excess / deficiency amount Δ, step S10 for controlling the supply of the seasoning S by the seasoning device 20, and after step S11 for sorting the products M based on the excess / deficiency amount Δ The process is performed in parallel. This excess / deficiency amount Δ is compared with each threshold value calculated in step S7.
[0049]
Sorting;
In step S11, the CPU (sorting unit) 51 sorts the products M as follows based on the excess / deficiency amount Δ and the threshold values SHi and SLi.
1st rank;
When the excess / deficiency amount Δ is equal to or greater than the first lower limit threshold SL1 and equal to or less than the first upper limit threshold SH1, the product M is classified as the first rank that is seasoned most accurately.
2nd rank;
When the excess / deficiency Δ is smaller than the first lower limit threshold SL1 and greater than or equal to the second lower limit threshold SL2, or the excess / deficiency Δ is greater than the first upper limit threshold SH1 and the second upper limit threshold SH2. In the case of the following, the product M is sorted as the second rank in which the seasoning is correctly performed next to the first rank.
3rd rank;
Similarly, when the excess / deficiency amount Δ is smaller than the second lower limit threshold SL2 and equal to or greater than the third lower limit threshold SL3, or the excess / deficiency amount Δ is greater than the second upper limit threshold SH2 and the third upper limit threshold SH2. When the value is equal to or less than the threshold SH3, the product M is sorted as the third rank that is correctly seasoned next to the second rank.
When the excess / deficiency Δ is the above three types of ranks, the process proceeds to step S13, and the article M is conveyed downstream.
[0050]
Line out;
The excess / deficiency amount Δ is smaller than the third lower limit threshold SL3 and the minimum lower limit threshold SL _MIN If it is as described above, or if the excess / deficiency amount Δ is larger than the third upper limit threshold SH3, it is determined that the seasoning S is light or excessive and the process proceeds to step S12. In step S <b> 12, the remote controller 50 outputs a sorting signal to the sorting device 62. When the defective product M is conveyed onto the sorting device 62, the sorting device 62 discharges the product M out of the system.
On the other hand, the excess / deficiency Δ is the minimum threshold SL _MIN If it is smaller than that, the CPU 51 determines that the product M is not seasoned, and the sorting device 62 discharges the article M out of the system. For example, the touch screen 54 is seasoned. A warning display or the like indicating that the inspection of the device 20 is necessary is performed.
[0051]
In addition, according to the kind of goods M, you may make it discharge the goods M of the said 2nd rank and the 3rd rank outside the system. Further, the second rank or the third rank article M may be sorted and transported in different paths from the first rank article M, and boxed for each seasoning rank.
[0052]
Seasoning supply control;
On the other hand, after the step S9, in step S10, feedback control of the supply amount of the seasoning S by the seasoning device 20 is performed in accordance with the excess / deficiency amount Δ.
For example, feedback control may be performed based on the excess / deficiency amount Δ. When the excess / deficiency amount Δ is a negative value, that is, when the actual addition amount Wr, which is the weight of the seasoning S actually added, is smaller than the supply weight Ws, the excess / deficiency amount Δ The supply weight Ws is increased. On the other hand, when the excess / deficiency amount Δ is a positive value, that is, when the weight of the seasoning S actually added is larger than the supply weight Ws, the supply weight Ws is reduced according to the excess / deficiency amount Δ. Is done.
The actual addition amount Wr is obtained by the following equation (3).
Actual addition amount Wr = Checker measurement weight Wd− (Measurement value Wc before seasoning + Tare weight Wb) (3)
[0053]
The supply weight Ws does not necessarily have to be calculated for each measured value Wc before seasoning. For example, a set value set for each product M may be used. Further, the tare weight Wb does not need to be calculated for each type of product. For example, a value calculated or measured in advance may be stored in the storage unit 52.
[0054]
In the embodiment, the excess / deficiency amount (actual deviation) Δ is calculated, the upper limit value and the lower limit value of the deviation are set as threshold values, and sorting is performed by comparing with the actual deviation Δ. Sorting may be performed by setting an upper limit value and a lower limit value corresponding to (total weight) ΣW and comparing the upper and lower limit values with the checker measurement weight Wd.
Further, the products M may be sorted based on the supply weight Ws and the actual addition amount Wr. For example, the supply weight Ws is multiplied by a predetermined number to calculate the upper limit threshold SHi and the lower limit threshold SLi, and the product M is sorted by seasoning by comparing the actual addition amount Wr with the thresholds SHi and SLi. Also good.
[0055]
Further, as the weight of the seasoning, a value obtained by multiplying the measured value Wc before seasoning by a predetermined value (a constant determined for each article) may be used instead of the actually supplied supply weight Ws. In this case, if the tare weight Wb is constant, the change in the reference value ΣW changes linearly according to the change in the pre-flavoring measurement value Wc.
In addition, you may consider the change of the tare weight Wb by measuring the length of an actual packaging material.
[0056]
In the above embodiment, the remote controller 50 is provided. Instead of providing the remote controller 50, the devices of the present system are connected to each other, and a setting means and a sorting unit are provided in any of the devices. Also good. For example, the checker control unit 23 may receive a signal from each device, and may perform sorting and feedback control of the supplied weight Ws.
[0057]
In such a case, an ID tag or a magnetic tape in which the reference value ΣW is written may be attached to the bag of each product M, and the reference value ΣW may be read upstream of the weight checker 300.
Furthermore, the bag of the product M may be identified by reading a barcode printed or pasted on the bag.
[0058]
The seasoning device 20 does not necessarily need to be a screw conveyor. For example, a tumbler (see Japanese Patent Publication No. 4-35132) or a charge spraying means (see Japanese Patent Laid-Open No. 2000-171913) is used. May be.
[0059]
【The invention's effect】
As described above, according to the present invention, the appropriateness of seasoning is ensured by knowing the excess / deficiency amount Δ of seasoning from the deviation between the checker measured weight Wd and the measured weight Wc before seasoning. That is, according to the seasoning state, the articles can be sorted by the sorting unit, or the addition amount can be feedback controlled by the excess / deficiency amount Δ. In addition, the quality of the seasoning and the seasoning control can be performed only by adding software using a conventional weight checker.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a weighing seasoning system according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing functions of a combination weighing device.
FIG. 3 is a partially cutaway schematic side view showing a combination weighing device, a seasoning device, and a bag making and packaging machine.
FIG. 4 is a schematic cross-sectional view showing a seasoning method.
FIG. 5A is a schematic configuration diagram of the system, and FIG. 5B is a chart showing storage contents of a storage unit.
FIG. 6 is a flowchart showing the operation of the system.
FIG. 7 is a chart showing a method of sorting and acceptance / rejection determination.
[Explanation of symbols]
1: Combination weighing device
20: Seasoning device
62: Sorting device
200: Bag making and packaging machine
300: Weight checker
M: Goods, goods
Wc: measured value before seasoning (measured weight)
Ws: Supply weight (weight of seasoning)
Wb: Tare weight (weight of packaging bag)
ΣW: Reference value (total weight) = Wc + Ws + Wb
Wd: Checker measurement weight
Δ: excess / deficiency = Wd−ΣW
Wr: Actual addition amount (of seasoning) = Wd− (Wc + Wb)
SH3: Third upper limit
SH2: Second upper limit value
SH1: First upper limit
SL1: First lower limit
SL2: Second lower limit
SL3: Third lower limit
SL _MIN : Minimum lower limit

Claims (8)

A weighing device for weighing the article;
A seasoning device that is arranged downstream of the weighing device and that seasons by supplying a seasoning of a weight according to the article;
A weighing seasoning system comprising a weight checker disposed downstream of the seasoning device and measuring the weight of the seasoned article,
Setting means for setting a reference value based on the measured weight of the article weighed by the weighing device and the weight of the seasoning;
A weighing seasoning system comprising: a sorting unit that performs sorting according to a seasoning amount of the article based on the reference value, a threshold value based on the weight of the seasoning, and a checker measurement weight measured by the weight checker. In claim 1,
The threshold is set as a lower limit and / or an upper limit,
A weighing seasoning system, wherein a plurality of the upper limit value and / or the lower limit value are set. A weighing seasoning system according to claim 1 or 2,
A weighing seasoning system, wherein the weight value of the seasoning is further set as a minimum lower limit value. In claim 1, 2 or 3,
A weighing seasoning system further comprising control means for controlling a seasoning amount by the seasoning device based on the checker measured weight and the reference value. A weighing device for weighing the article;
A seasoning device that is arranged downstream of the weighing device and that seasons by supplying a seasoning of a weight according to the article;
A weighing seasoning system comprising a weight checker disposed downstream of the seasoning device and measuring the weight of the seasoned article,
Setting means for setting a reference value for control based on the measured weight of the article weighed by the weighing device and the weight of the seasoning;
A weighing seasoning system comprising: control means for controlling a seasoning amount by the seasoning device based on a checker measurement weight measured by the weight checker and the reference value. A weighing seasoning system according to any one of claims 1 to 5,
From the measured weight of the checker and the measured weight of the article weighed by the weighing device, the actual amount of the seasoning actually added to the article is calculated, and the weight of the seasoning supplied by the seasoning device; A metering seasoning system that controls the seasoning supply of the seasoning device based on the actual addition amount. A weighing seasoning system according to any one of claims 1 to 6,
A packaging machine for packaging the article between the seasoning device and the weight checker;
The weighing and seasoning system according to claim 1, wherein the reference value is set in consideration of a weight of a packaging bag for packaging an article by the packaging machine. A weighing seasoning system according to any one of claims 1 to 7,
The said seasoning apparatus is a measurement seasoning system which supplies the weight of the seasoning according to the measured weight of the articles | goods measured by the said measuring apparatus.

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