JP2973584B2 - Article constant weight collection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for circulating and transporting a group of articles less than the required weight (target weight) of a packaging unit, and combining at least two groups of articles during the transportation. Weight as or close to
The present invention relates to a constant weight collecting apparatus for obtaining an article group .

[0002]

2. Description of the Related Art In order to collect target weights of irregular articles, the weights of articles supplied to weighing hoppers of a plurality of weighing instruments are each weighed, and each of the weighed values is added for a different combination to obtain a predetermined weight or a predetermined weight. There are weighing devices that get the closest weight combination.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention, the target weight
After weighing a group of articles to an amount close to the target weight in order to obtain a group of articles , omit the fine-tuning time of putting in several pieces, one piece at a time, or a small quantity to make the group of articles with the required target weight. The purpose is. The screws and nails, granular or powdered medicament, the article such as pet food, etc., or the weight of one packaging unit requiring to collect other irregular article or its near
To have the weight, any amount of with less than the target weight
By weighing a group of articles and circulating and transporting the group of articles as one unit, and performing a combination operation on the weight of the group of articles , the combined group of articles is collected at a discharge location in the process of being transported. Or close to the weight of the packaging unit
It is intended to continuously obtain a heavy article group.

[0004]

Means for Solving the Problems] The present invention collects
A supply means for supplying a lower weight of the article from the target weight for applications, goals weight and setting means for setting a tolerance for the target weight, the supplied articles per amount supplied by said supply means circulation is conveyed, and distribution means for selectively releasing the group of articles of the amount each in the transport developing, keep track of the current position before SL product article group in response to movement of the dispensing means together with the weight information of the group of articles Tracking means, and as one collection weight unit based on the target weight and the tolerance set by the setting means by combining at least two article groups of the article group
Combinations of articles that fall within the acceptable allowable collection weight range
Calculating means for obtaining was a result of the combination at the computing means,
Discharging means for discharging the combination of articles within the allowable collection weight range from the dispensing means based on the current position from the tracking means; and emptying of the article groups based on information on the current position of the article group from the tracking means. It becomes articles to an empty position of the distributing means corresponding to the information and control means for outputting a supply command to said supply means to supply, before the said control means
Supply means for supplying an article to an empty position of the dispensing means;
When the supply command is output to the
Based on the weight of the group of articles for which the combination has not yet been determined,
Calculate the range of the weight that is insufficient for the collection weight range,
Supplying articles within the insufficient weight to the empty position.
It is characterized by controlling the supply means in order to
The present invention provides an apparatus for collecting fixed weight articles .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the article constant weight collecting apparatus 1 of the present invention will be described with reference to the drawings. Reference numeral 2 denotes a circulating conveyor as a distributing means in which a large number of trays 3 are provided in series, and circulates and conveys articles 4, such as granular medicines, charged in the tray 3 for each unit charged.

Reference numeral 5 denotes an input device provided at the upstream end of the circulating conveyor 2 as supply means for inputting an article 4 in an amount smaller than a target weight to be collected. The feeding device 5 includes a supply chute 6 for supplying the articles 4 as shown in FIG.
Chute 7 which is moved forward while being loosened by vibrating, a charging hopper 8 which receives the amount of the article 4 falling from the tip of the loosening chute 7 to measure and then throws it into the tray 3 of the circulation conveyor 2; A weighing device 9 for weighing the article group 4 'in the hopper 8.

Reference numeral 10 denotes a conveying speed of the circulating conveyor 2 attached to a driving shaft (not shown) of the circulating conveyor 2, and detects the current position of the supplied article group 4 'and the weight of the article group 4'. Is a first encoder as a tracking means for tracking the movement of the circulating conveyor 2 together with the above information. Therefore, the position of each tray 3 is confirmed by the speed signal obtained from the encoder 10, whereby the weight of the article group 4 ′ supplied to the tray 3 is grasped. Similarly, after the article group 4 'in the tray 3 is released, the empty tray 3 is grasped.

Reference numeral 11 denotes a transport conveyor in which a large number of part cases 12 are provided downstream of the circulating conveyor 2 at right angles to the direction of the arrow A, which is the direction in which the circulating conveyor 2 is transported. On the side of the circulation conveyor 2 where the conveyor 11 and the circulation conveyor 2 intersect,
An opening device 13 is provided as release means for opening the bottom of the tray 3 in response to the release signal and discharging the article group 4 ′ in the tray 3.

An accommodation device 1 is provided below the circulation conveyor 2 for receiving the group of articles 4 'released from the tray 3 and temporarily storing the group of articles 4'' after combination.
4 are provided. As shown in FIGS. 2 and 4, the storage device 14 is configured to open and close the lower part of the article case 4 ″ into the part case 12 in synchronization with the transfer of the part case 12 of the transport conveyor 11. It comprises one hopper 15, a second hopper 16 and a chute 17. Incidentally, a second encoder 18 is attached to a drive section (not shown) of the transport conveyor 11 to intermittently position the parts case 12 below the chute 17.

[0010] 19 combines the least weight of the group of articles 4 'also in two sets of pan 3 of' the group of articles 4 while are transported in a circulating conveyor 2 'group of articles 4, one collecting heavy
Goods that fall within the allowable collection weight range that can be accepted as a unit of quantity
Obtain the combination of group 4 ' , this combined article group
This is a control device for selectively discharging 4 ′ to the storage device 14, and is provided near the circulation conveyor 2 (see FIG. 1).

The control device 19 comprises a control unit 20 and a calculation unit 21 as shown in FIG. Control unit 20
Is based on the transport speed signal from the first encoder 10,
In order to supply the articles 4 to the tray 3 of the circulation conveyor 2, a vibration start signal is output to the loosening chute 7 and a weighing signal from a weighing device 9 for measuring the amount of the articles 4 supplied to the input hopper 8 is received. The vibration stop signal is output to the loosening chute 7 by supplying an amount approximating a preset amount. Then, the input hopper 8 containing the supplied article group 4 'is opened and closed, and the empty tray 3 is opened.
Is supplied with the article group 4 ', the supplied tray 3
The weight of the article group 4 ′ is stored in the calculation unit 21 in association with the tray 3. Therefore, after the article group 4 'in the receiving tray 3 is released, it is grasped as an empty receiving tray 3 as in the case of the empty state before the article 4 is input. Further, since the position of each tray 3 is continuously grasped by the speed signal of the circulation conveyor 2 input from the encoder 10, it is possible to determine which tray 3 is located at a position facing the opening device 13. I have.

The calculating unit 21 calculates one target weight based on the target weight and the tolerance set by the setting unit 22 as setting means for setting a target weight and a tolerance for the target weight.
The calculation is performed to obtain a combination of at least two article groups 4 ' within the allowable collection weight range allowable as the position .
Then, as a result of the combination calculated by the calculation unit 21, the accommodation device 1
When the tray 3 to be opened is determined in 4, the release signal is output from the control unit 20 every time the determined tray 3 is conveyed to the side of the opening device 13.

The article group 4 'discharged into the storage device 14
Each time the total weight is within the allowable collection weight range , that is, each time the combined set of trays 3 is opened, the control unit 20 sends the first hopper 15 or the second hopper 16 of the storage device 14 to the storage unit 14. An open / close signal is output to release the temporarily accommodated component group. The release signal to the second hopper 16 is output after confirming that the parts case 12 has been positioned below the chute 17 based on the transport signal from the second encoder 18.

The operation of the article constant weight collecting apparatus 1 having the above configuration will be described. The articles 4 supplied to the loosening chute 7 little by little from the supply chute 6 of the throwing device 5 are supplied to the loosening chute 7 by the vibration start signal from the control unit 20 of the control device 19, and the throwing hopper 8 is gradually loosened. Run down. The amount of the group of articles 4 ′ that sequentially flows down into the charging hopper 8 is measured by the measuring device 9, and the measured weight of the group of articles 4 ′ is sent to the control unit 19 one by one. Control unit 19
Is stored beforehand from the setting unit 22, and when an amount around the supply amount is supplied to the charging hopper 8, the control unit 20 outputs a vibration stop signal to the loosening chute 7. .

In the present embodiment, a target weight as one collection unit is set to 100 g of an article group 4 ', and +5 g is set as a tolerance. Then, the amount of about 50 g, which is 1/2, is irregularly put into the receiving tray 3 as a single supply amount.
Therefore, the target weight 10
0 g, tolerance +5 g, and supply amount per one time of 50 g are set.

The circulating conveyor 2 conveyed in the direction of arrow A
On the other hand, the control unit 20 receives the transport speed signal of the circulation conveyor 2 from the first encoder 10, and when the empty tray 3 is positioned below the loading hopper 8, the opening / closing signal is transmitted to the loading hopper 8. Is output, and the article group 4 ′ in the input hopper 8 is thrown into the tray 3. At this time, the weight of the article group 4 ′ and the receiving tray 3 inserted are stored in the calculation unit 21. In this way, the articles 4 are sequentially loaded into the empty tray 3 that has come below the loading device 5. Each tray 3 contains a different amount of article group 4 ′, and each tray 3 always has a current position based on a transport speed signal from an encoder 10 provided on a drive shaft of the circulation conveyor 2. Is understood.

During the period from when the article 4 is put into the receiving tray 3 to when it is transferred to the position where the opening device 13 for opening the bottom of the receiving tray 3 is provided, the arithmetic unit 21 sets the setting unit.
The target weight set at 22 is 100 g, which is
Permissible as a unit of collection weight based on 5g
Collection weight range, ie within 100g to 105g
In order to obtain a combination of the article groups 4 ′, a combination operation is performed between the article groups 4 ′ of each tray 3.

When the tray 3 having the combination determined is transferred to the opening device 13, the tray 3 is transferred to a temporary storage device 14 provided below the circulation conveyor 2 at this position by an opening signal from the control unit 20. Article group 4 'in 3
Is released. When the article group 4 ′ is discharged from the tray 3 as a set of combinations, it is grasped as zero weight, that is, as an empty tray 3. And the first encoder 10
When the empty tray 3 is found to be positioned below the input hopper 8 based on the transport speed signal from, the article 4 is newly supplied.

When the article group 4 'is released from the two trays 3, which are a set of combinations, an opening signal is output from the control unit 20 to the first hopper 15 or the second hopper 16 of the storage device 14, and the conveyance is performed. The first hopper 15 is used for temporary holding before discharging to the parts case 12 of the conveyor 11.
Or, it is stored in the second hopper 16.

The first hopper 15 or the second hopper 1
6 is determined by an open / close signal from the control unit 20. Both unto also the first hopper 15 and a second hopper 16 as specifically shown in FIG. 4
When the article group 4 ″ within the collection weight range is not accommodated, the first hopper 15 is accommodated in the second hopper 16 with the first hopper 15 opened (state of FIG. 4A). When the article group 4 ″ is stored only in the second hopper 16, it is stored in the first hopper 15 (state B in FIG. 4). And Izu on to said group of articles 4 '' is accommodated also <br/> Re in the first and second hopper 15, 16, part case 12 is positioned below chute 17. Accordingly, as shown in FIG. 4C, the second hopper 16 is opened by the release signal from the control unit 20, and the temporarily stored article group 4 ″ is discharged to the parts case 12.

Next, a specific combination operation will be described. FIG. 6 shows the storage positions for the combination calculation built in the calculation unit 21, and Table 1 shows the quantity and the transport order, that is, the weighing order, of the article group 4 ′ stored in the tray 3. .

In the arithmetic section 21, eleven storage positions P1 to P11 are set. Each time the weight is sequentially measured, the weight of the stored article group 4 ′ is shifted from P11 to P10 and from P10 to P9 based on the transport signal from the first encoder 10. Then, every time the gear is shifted, the weight entered in P11 and the weight weighed up to that point,
By combining with the weight already stored between the storage positions P10 and P1, the combined weight is within the allowable collection weight range.
It is calculated whether or not a certain 100 g to 105 g is satisfied.

First, it is determined whether or not the tray 3 is empty, that is, whether or not the weight corresponding to the tray 3 is stored. If the tray 3 is empty, the hopper 8 is put into the tray 3. , An article group 4 'is input. When the article 4 is input from the input hopper 8, for example, from Table 1, P
11 stores the first 51.4 g of the weighing order. P10
Since nothing has been stored yet between P1 and P1, no combination operation is performed.

[0024]

[Table 1]

51.4 g of the storage location P11 is stored in the storage location P10.
The second 48.5 g of the weighing order is stored in the empty storage position P11.

Therefore, this time, 48.5 of the storage location P11 is stored.
g and 51.4 g of the storage location P10 are added to allow an allowable collection weight.
Calculate whether the quantity range is satisfied. Since the result of the combination calculation is 99.9 g, it is determined that there is no combination this time because the allowable collection weight range is not satisfied.

Next, 51.4 stored in the storage location P10.
g is shifted to the storage location P9, and 48.5g of the storage location P11 is shifted to the empty storage location P10, and the empty storage device P11 stores the third 53.5g of the weighing order. 53.5 g stored in the storage location P11 thereafter
And other weights are combined to calculate whether they fall within the allowable collection weight range . Therefore, 53.5 g of the storage location P11 and 48.5 g of the storage location P10 are combined, and as a result of the combination operation, it becomes 102 g, which satisfies the allowable collection weight range . The third 53.5 g is determined as the first combination set 1a.

Next, 51.4 g of the storage location P9 is moved to the storage location P8, and 48.5 g of the storage location P10 is moved to the storage location P9.
53.5g of storage location P11 is shifted to storage location P10,
The fourth storage order 54.
0 g is input. In the present embodiment, the storage device 14 for discharging the combined set is provided at one place. Therefore, a different combination set is not determined across the already combined article group 4 ', and 51.4 g of the storage location P8 is not determined.
Is not performed. Therefore, there is no article group 4 'to be combined with 54.0 g at the storage position P11, and the weight of the new article group 4' is stored in the storage position P11.

After the weights stored in each of the storage positions P11 to P9 are shifted, 51.3 g of the fifth counting order is input to the storage position P11 as shown in Table 1. Combination operation is performed with 51.3 g of the storage location P11 and 54.0 g of the storage location P10 which has not been determined as a combination yet, but becomes 105.3 g, which is within the allowable collection weight range.
It can not be satisfied that this is the weighing sequence sixth 47.3g is stored in the storage position P11. Then, 47.3 g of the storage location P11 and 51.3 g of the storage location P10.
g, the combination calculation is performed, but the result is 98.6 g, which does not satisfy the allowable collection weight range . Therefore, this time, 47.3 g of the storage location P11 and the storage location P9
Of 54.0g, and the result of the calculation is that the added value is 101.3g, which is within the allowable collection weight range.
Removing and weighing order fourth 54.0g since satisfying a metering sequence sixth 47.3g is determined as a combination of sets 2a to. The combination is determined in this way.

The article group 4 'of the combination set 1a is accommodated in the second hopper 16 of the accommodation device 14, and the combination set 2a is accommodated in the first hopper 15. During this time, when the parts case 12 of the conveyor 11 is positioned below the chute 17, the combination set 1 stored in the second hopper 16
The article group 4 ″ a is released to the parts case 12.

The article groups 4 'whose combination has been determined in this way are sequentially discharged in the order of transport. Subsequent storage device 1
Explaining the specific temporary holding procedure in 4, when the combination set 1a is released, as shown in the state of FIG. 4A, the combination set 1a is released to the second hopper 16 with the first hopper 15 opened. It is temporarily held until the parts case 12 of the conveyor 11 is positioned. When the next combination set 2a is released, the first hopper 15 is closed by a command from the control unit 20, as shown in the state of FIG. 4B, and the first hopper 15 is provided with the article group 4 'of the combination set 2a. 'Will be accommodated. Then, the article group 4 'of the combination set 3a
By the time the is transported, as shown in the state C in FIG.
Parts case 12 of the conveyor 11 is positioned below chute 17, the object product group in the second hopper 16 4 '' is inserted in the part casing 12.

If the next part case 12 is positioned before the article group 4 'of the combination set 3a is conveyed, the article group 4''in the first hopper 15 is directly put into the part case 12. If the article group 4 ″ of the combination set 3a is released before the next part case 12 is positioned below the chute 17, the control unit 20
A signal to close the second hopper 16 and an opening / closing signal to the first hopper 15 are output. The first hopper 15 accommodates the article group 4 ″ of the combination set 3a.

[0033]

[Table 2]

As another embodiment, as shown in the electric block diagram of FIG. 7, more efficient constant weight packaging can be performed by providing two storage devices. That is, the opening devices 13, 13 'and the accommodation device 14,
14 'were provided at two locations, and two accompanying conveyors were also installed.

In such a case, the combination operation result and the operation unit 2
Table 2 and FIG. 8 show the storage states between the storage positions P11 and P1 in 1. In the case of the present embodiment, the first 51.4 g in the weighing order and the third 53.5 g in the weighing order.
As a combination set 1b in one storage device 14, and the second 48.5g in the weighing sequence and the fourth 54.g in the weighing sequence.
0g is determined to be released to the other receiving device 14 'as combination set 1c. Since the combination sets 1b and 1c have different release locations, different combination sets can be determined across the already combined article group 4 'as shown in FIG.

Further electrical block diagram illustrated in Figure 9, provided with a place to put the articles 4 into the receiving tray 3 two places, which provided a place to release the combination sets two locations, the target by such Multiple weights can be set. For example, if the target weight is 100 g and 200 g,
By putting around 50g into the receiving pan 3, 100
The g-packing or the 200-g packing can be performed.

In this embodiment, as shown in FIG. 10, the articles supplied from the charging device 5 are circulated and transported in the direction of arrow B. The arithmetic unit 1 is moved before passing through the opening device 13 provided upstream with respect to the second charging device 5 '.
The combination operation is performed in step 9 to determine a group of articles of a combination set that falls within the allowable collection weight range . Each time the determined article group reaches the opening device 13, it is released to the storage device 14 by the operation of the opening device 13. The empty article group accommodation position of the circulation conveyor 2 due to the discharge of the article group is grasped by the arithmetic unit 19 by the first encoder, and the empty article group accommodation position is located downstream of the opening device 13. A new article group is selectively input from the provided second input device 5 '. Then, the group of articles not determined as the combination set and the newly supplied article group pass through the second opening device 13 ′ provided downstream of the second charging device 5 ′ and upstream of the charging device 5. Is similarly operated, and the obtained group of articles of the combination set is the second opening device 1
It is discharged to the second storage device 14 'by the operation of 3'.

[0038] In addition, the target weight that require 1 / N (N
= 3, 4, 5,...) May be irregularly put into the tray 3.

For example, in order to pack a target weight of 100 g, the first charging means does not exceed 100 g and does not exceed 100 g.
A number close to 00 g may be input, and the second input means may input several g.

In the opening device 13, the operating rod of the air cylinder protrudes from a projection provided on the bottom plate of the tray 3,
Although the bottom plate opens so as to hit the protrusion,
In addition, the tray 3 may be inclined and the transport path may be deformed so as to spill the article group 4 ′ therein.

Those not determined as the combination set may be ejected once and a new article 4 may be put in, or a new article 4 may be put into the empty tray 3 so as to be set once. May be recombined for those that have not been combined.

By the way, as a combination operation, the storage device P11
Has disclosed an embodiment of the combination between the number input to the number and the number at another storage location, but is not limited to this, and the nCr that operates in all the combination patterns, which is a so-called general combination operation May be combined.

[0043] Also shown in FIG. 11 is an illustration of an article constant weight collection device 25 when a plurality of hoppers 23 as a distribution unit employing a rotary distributor hopper 24 provided concentrically, goal weight lesser amounts of A supply device 26 shown in FIG. 3 for supplying articles, a setting unit 27 for setting a target weight and an allowable difference with respect to the target weight, and an arrow C direction for each amount of articles supplied by the supply device 26 Rotating distribution hopper 2 that rotates and selectively distributes during the rotation
4, a tracking device 29 for tracking the position of the article group 28 supplied by the supply device 26 in accordance with the movement of the rotary distribution hopper 24, and an article group 2 from the tracking device 29.
8, a supply command is output to the supply device 26 to supply the articles to the empty position of the rotary distribution hopper 24 corresponding to the empty information of the article group based on the information of the current position of the rotary group. when outputting the supply command to the supply device 26 to supply goods to the position, the carried in rotary distributor hopper 24 is not combined determined but not yet an article group 28
Weight that is insufficient for the allowable collection weight range
Calculate the range of the quantity, and the group of articles within this insufficient weight range
The supply device 26 is supplied to supply the empty position to the empty position, and at least two units of the article group 28 are combined and allowed.
Obtain a group of goods within the collection weight range, and combine
A control device 31 shown in FIG. 5 for selectively discharging a group of articles to the storage device 30 shown in FIG. 4, and the control device 31
And a lower opening / closing means 3 for discharging a group of articles 28 in the combination falling within the allowable collection weight range from the hopper 23 of the rotary distribution hopper 24 as a result of the combination in
Upper and lower temporary storage hoppers 35, 36 having 3, 34
And it consists chute 37, an article in the allowable collected weight range as the receiving device 30 that accommodates temporarily the article group within the allowable collected Weight range released, supplied from the receiving device 30 by the discharge device 32 And a transfer device 39 that receives the group in synchronization with the transfer of the plurality of receiving units 38 connected to each other. The transport device 39 is transported to a packaging device (not shown) and returns with the receiving portion 38 empty.

The operation of the constant weight article collecting apparatus 25 of this embodiment will be described based on the control of the control unit 31. When the loosening chute is vibrated by the vibration start signal, the articles are supplied to the input hopper while being dispersed. The supplied articles are weighed by a weighing device, and by receiving the weighing signal, it is determined whether or not the value has become close to the weight to be supplied.
When the approximate value is reached, a vibration stop signal is output for the loosening chute.

The control device 31 determines whether or not the hopper 23 has been positioned below the input hopper based on a tracking signal from the tracking device 29. It is also determined whether the positioned hopper 23 is empty. If empty, an open signal is output to the input hopper, and the article group 28 is input into the empty hopper 23.

Then, a combination operation is performed between the weight of the put article group 28 and the weight of the already put article group 28 in the other hopper 23. If a combination is obtained, the combination is determined. The article group 28 of the combination set determined during the calculation is discharged to the storage device 30. That is, when the rotation distribution hopper 24 is rotated in the direction of the arrow C to determine that the combination set of hoppers 23 has reached the position where the discharge device 32 is provided, the discharge signal is output to the discharge device 32 and the discharge device is output. The bottom of the hopper 23 is opened by the operation of 32, and the article group 28 is discharged to the storage device 30.

The hopper 23 that has been discharged and emptied is recognized as empty by the control device 31, and rotates again to supply articles.

If a combination cannot be obtained, the weight required to obtain the combination is calculated. For example, eyes
When the reference weight is set to 100 g and the article group 28 of about 50 g is supplied, if it is grasped that the weight of 50 g or more is supplied or that only the weight of 50 g or more is left, the weight is reduced to 50 g or less. Is calculated so as to supply the group of articles 28. The output timing of the vibration stop signal output from the controller 31 to the loosening chute is controlled so that the output of the weighing signal from the weighing instrument exceeds 50 g.

In order to obtain a sales unit for packaging a constant amount of screws or the like, or a sales unit for constant weight packaging of pet food, etc. It may be provided. Wherein when the constant weight packaging, by providing a tolerance to the target Weight can be easily obtained a set of combinations.

Further, in a constant weight collecting apparatus for articles of the same weight such as nails and tablets, medicine may be implemented with a tolerance of zero for a target weight set by the setting means.

In the case of bolts and nuts or screws and washers that are generally sold as a set of plural types, plural types may be counted and combined. In this case, the temporary storage means is temporarily held until a plurality of target numbers are obtained.

[0052]

According to the present invention, when a group of articles to any amount less than the target weight and a unit Ru is circulated conveyed co
A combination operation is performed on this group of articles in
A group of articles is collected at the discharge location on the way of transport based on the calculation results, and the required packaging unit or an article group with a value close to this
For adapted to obtain a combination continuously, eye
After weighing an amount close to the reference weight, several or one by one or
Adjust the amount of fine adjustment time to reach the required target weight
Can be omitted, and the control means can be used to control the distribution means.
Supply command to the supply means to supply the article to the empty position
At the time of output, it is transported by the distribution
From the weight of the unspecified group of articles to the allowable collection weight range
Calculate the range of the insufficient weight for the
Supply means is controlled to supply articles within the range to the empty position.
The combination is not decided because
As many as possible the number of articles that are circulated and conveyed many times by the distribution means
It is possible to reduce the number and thus increase the collection efficiency.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an embodiment of the present invention.

FIG. 2 is a side view schematically illustrating FIG. 1;

FIG. 3 is a side view illustrating the charging device of FIG. 1;

FIG. 4 is an explanatory view of the storage device of FIG. 1;

FIG. 5 is an electric block diagram of FIG. 1;

FIG. 6 is an explanatory diagram of a combination calculation indicating a storage position of the control device illustrated in FIG. 1;

FIG. 7 is an electric block diagram showing another embodiment of the present invention.

8 is an explanatory diagram of a combination calculation indicating a storage position of the control device illustrated in FIG. 7;

FIG. 9 is an electric block diagram showing another embodiment of the present invention.

FIG. 10 is a plan view schematically illustrating the embodiment of FIG. 9;

FIG. 11 is a perspective view illustrating another embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 article constant weight collecting apparatus 2 circulation conveyor 3 tray 4 article 4'4 '' article group 5 input device 6 supply chute 7 loosening chute 8 input hopper 9 weighing device 10 first encoder 11 transport conveyor 12 parts case 13 opening device 14 Storage device 15 First hopper 16 Second hopper 17 Chute 18 Second encoder 19 Computing device 20 Control unit 21 Computing unit 22 Setting unit 23 Hopper 24 Rotation distribution hopper 25 Article constant weight collecting device 26 Supply device 27 Setting unit 28 Article group 29 Tracking device 30 Storage device 31 Control device 32 Discharge device 33, 34 Lower opening / closing means 35 Upper temporary retaining hopper 36 Lower temporary retaining hopper 37 Chute 38 Receiving part 39 Transport device 40 Drive device

Claims (1)

(57) [Claims] And 1. A supply means for supplying the articles of lower weight than the target weight to be collected, and setting means for setting a tolerance for the goal weight and the target weight, the supplied articles in said supply means was circulated transported per supplied quantity, those
And distribution means for selectively releasing the group of articles in each said amount in conveying developing, and tracking means for tracking the current position before SL product article group in response to movement of the dispensing means together with the weight information of the group of articles A combination of at least two of the article groups based on the target weight and the tolerance set by the setting means.
Within the allowable collection weight range that can be accepted as a single collection weight unit
Calculating means for obtaining a combination of the group of articles to be, the calculation means combining the results for the release to be released from the dispensing means based the group of articles combined to be the allowable collected weight range to the current position from the tracking means Means for outputting a supply command to the supply means so as to supply the article to the empty position of the distribution means corresponding to the empty information of the article group based on the information on the current position of the article group from the tracking means. Consisting of
The article from the control means to an empty position of the distribution means.
When outputting a supply command to the supply means to supply,
Items transported by the distribution means and for which the combination has not yet been determined
Insufficient for the allowable collection weight range from the weight of the product group
Calculate the range of the weight that
Controlling the supply means to supply the empty position to the empty position.
Is in article constant weight acquisition device you wherein a has.