JP3565136B2 - Paper sorter - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
This invention relates to a ward BunSo location of a sheet, in particular, to ward BunSo location of the paper sheet for partitioning by rearranging the sheets conveyed postal matter or the like which is conveyed to the predetermined order.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known an apparatus for rearranging 1000 conveyed sheets such as mails in a predetermined order. This apparatus has 10 divided collecting units having one supply collecting unit and a tile-shaped supplying unit, and several overflow collecting units.
[0003]
At the time of rearrangement, the reading unit reads the sorting information added to the paper sheet from the supply stacking unit, checks the sorting information with a predetermined order table, and, for example, reads the first to tenth stackers (stacking boxes). Classify either. At the time of the first supply, since the amount of accumulation divided into each accumulation unit cannot be predicted, when a certain accumulation unit is full, it is allocated to the overflow accumulation unit.
[0004]
[Problems to be solved by the invention]
However, if the bins in each bin are not averaged and the number of paper sheets assigned is low for one bin and especially high for another bin, the stacking capacity may be Overflowing may occur (overflow).
[0005]
Further, when a partition plate mechanism is attached to the stacking unit, and sheets separated by the partition plate are stacked in the same stacking unit and resupplied, the sheets are allocated to a specific stacking box. In other words, there is a bias that a particular bin is assigned a particularly large amount, and even though one bin is empty, another bin may overflow.
[0006]
The purpose of the invention allows a good route sequencing efficiency without overflow, further, is to provide a district BunSo location of the paper sheet which can be downsized apparatus.
[0007]
[Means for Solving the Problems]
To achieve the above object, sorting apparatus for paper according to the present invention, in sorting apparatus of sheets for partitioning by rearranging the sheets conveyed to the predetermined order, the paper sheet storing section when integrated, the allocation of the stacking units, and to change the resupply order to return the paper sheet to the feeding section, characterized in that have a row cormorants partition plates a plurality of integrated having different supply order And
[0008]
By having the above configuration, when stacking the conveyed paper sheets in the stacking unit, the supply order is changed so that the allocation of the stacking units by the partition plate and the re-supply order of returning the paper sheets to the supply unit are changed. a plurality of integrated having different performed. As a result, in the case where the conveyed paper sheets are rearranged in a certain order and divided, it is possible to eliminate the overflow and to efficiently assemble the route, and to further reduce the size of the apparatus.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a schematic configuration diagram of a sheet sorting apparatus according to an embodiment of the present invention. As shown in FIG. 1, a sheet sorting apparatus (route assembly machine) 10 includes a supply unit 12, a detection unit 13, and a sorting unit 14 provided along a transport path 11.
[0012]
The supply unit 12 has a function of supplying one sheet at a time, such as envelopes, postcards, and the like, which are conveyed items. Can be resupplied.
[0013]
The detecting unit 13 includes a two-way detecting unit 15 that detects two-way feeding, a positioning unit 16 that adjusts the transport direction of the supplied sheets, an exclusion box 17 that removes the two-way detected sheets, and sheets. It has a reading unit 18 for reading the sorting information (machine code or the like) added above, a thickness detecting unit 19 for measuring the thickness of the paper sheet, and a switchback unit 20 for changing the transport direction of the paper sheet.
[0014]
The sorting unit 14 has a plurality of stacking units 21 arranged side by side along the transport path 11. The stacking unit 21 has a stacking box provided with a stacking plate on which the stacked sheets are placed. In this example, 12 stacking boxes are provided, and 3 of them are arranged in the supply unit 12. The stacking unit 21 is provided with a partition plate 22 and a resupply unit 23. The partition plate 22 freely moves up and down in the stacking unit 21, and the resupply unit 23 removes the stacked paper sheets. And a mechanism for continuously supplying the supply unit 12 without changing the stacking order.
[0015]
Further, the transport path 11 is provided with a branching mechanism 24 for branching the sheets conveyed one by one on the transport path 11 to the stacking unit 21.
[0016]
FIG. 2 is a block diagram illustrating a control system of the sorting apparatus of FIG. As shown in FIG. 2, the sorting apparatus 10 includes a control unit 25, a memory unit 26, and an accumulation order table 27.
[0017]
The reading unit 18, the thickness detecting unit 19, the supply unit 12, the branching mechanism 24, the accumulation unit 21, and the resupply unit 23 are connected to the control unit 25, together with the memory unit 26 and the accumulation order table 27. The memory unit 26 stores the procedure, machine code, number of objects, thickness, a two-pass / three-pass division allocation table, and the like, that is, accumulation order information, division information, and the route and the number of objects corresponding to the relevant division information. The stacking order table 27 stores the order and the corresponding machine code.
[0018]
FIG. 3 is an explanatory diagram of the assignment by the sorting device of FIG. As shown in FIG. 3, by forming the route table 28 in which the machine code, the route, the physical quantity, and the thickness are listed in a corresponding manner, the control unit 25 controls the sorting information read by the reading unit 18. The sorting control is performed based on the result of the comparison with the route table 28.
[0019]
In the sorting apparatus 10, sorting is performed using the radix sorting method. If the number of stacks is 10, the sorting can be performed up to 1000 sections by performing cliffing three times.
[0020]
The supply unit 12, which is a main supply / accumulation unit, has a function of supplying and accumulating sheets, and the sheets arranged here are sent out one by one by a sending mechanism. The transport direction of the fed sheets is changed by the switchback unit 20 in order to align the direction at the time of supply with the direction at the time of stacking. The disturbance in the transport direction of the paper sheet caused by the supply unit 12 and the switchback unit 20 is adjusted by the alignment unit 16.
[0021]
The thickness of the paper sheet is measured by the thickness detection unit 19, and the reading unit 18 reads the sorting information (such as a machine code) added to the paper sheet. Then, based on a collation result between the read sorting information and a stacking order table 27 indicating a stacking state in which sheets are finally sorted in advance, a corresponding stacking unit 21 is generated by the branching mechanism 24. Be accumulated.
[0022]
At this time, the control unit 25 causes the memory unit 26 to store the stacking order information, the sorting information, the number of articles, and the thickness information of the sheets at any time. That is, the memory unit 26 stores the stacking order information, the sorting information, the number of articles, and the thickness information of the sheets to be sorted.
[0023]
Since the amount of sheets stacked in each stacking section 21 depends on the number of articles and the thickness, each stacking section 21 is not uniform. As a result, there may be a case where one stacking unit 21 is full but another stacking unit 21 is still empty. When the stacking unit 21 is full, a dedicated stacking unit may be provided, but it is necessary to prepare a portion corresponding to the stacking unit 21 to be full.
[0024]
FIG. 4 is an explanatory diagram showing a sorting operation by the sorting device of FIG. As shown in FIG. 4, first, when a certain stacking unit 21c is full at the time of the first sorting of the paper sheet conveyed along the conveying path 11, the sheet is located upstream of the full stacking unit 21c. After moving the partition plate 22 of the stacking unit 21b, the sheets are stacked via the partition plate 22 on the sheets already stacked.
[0025]
Thereafter, the sheets to be stacked in the stacking unit 21c are stacked via the partition plate 22 after moving the partition plate 22 in all the stacking units 21 in the same manner as the sheets stacked in the stacking unit 21b. Let it. At this time, the stacking order of the sheets is stored in the memory unit 26 (see (a)).
[0026]
Next, when the stacking portion 21b located on the upstream side is full, the partition plate 22 of the further upstream stacking portion 21a is moved, and then on the sheets already stacked via the partition plate 22. Accumulate paper sheets. Thereafter, the sheets to be stacked in the stacking unit 21c are stacked via the partition plate 22 after moving the partition plate 22 in all the stacking units 21 in the same manner as the sheets stacked in the stacking unit 21a. Let it. At this time, the stacking order of the sheets is stored in the memory unit 26 (see (b)).
[0027]
In addition, in all the stacking units 21 located upstream of the stacking unit 21c, when the empty stacking unit 21 is used up, the sheets to be sorted and stacked in the stacking unit 21c are directly sorted and stacked in the supply unit 12.
[0028]
After the first sorting, the stacking plate (not shown) on which the sheets are placed is lowered, and the sheets are sequentially tiled from the stacking unit 21a based on the stored stacking order information and the partition plate 22. It is sent out in a tile shape by a shape supply unit (not shown) and returned to the supply unit 12 again.
[0029]
That is, when the conveyed sheets are stacked in the stacking unit 21, a plurality of stacks in different supply orders are performed by the partition plate 22, the stacking unit 21 is assigned, and the sheets are returned to the supply unit 12. The supply order has been changed.
[0030]
The order in which the stacking units 21 return to the supply unit 12 will be specifically described as follows.
[0031]
In the case of FIG. 4 (a), sheets in section 0 of the stacking section 21a, sheets in section 1 of the stacking section 21b, sheets in section 1 of the stacking section 21a, and sheets in section 2 of the stacking section 21c. The order is maintained by returning to the order of the leaves and the sheets of the section 2 of the stacking unit 21b.
[0032]
In the case of FIG. 4B, the sheets in the section 0 of the stacking section 21a, the sheets in the section 1 of the stacking section 21b, the sheets in the section 2 of the stacking section 21c, and the sheets in the section 2 of the stacking section 21a. The order is maintained by returning to the order of leaves.
[0033]
Further, as shown in FIG. 4C, before performing the second pass, the number of objects to be allocated to each sorting box in the second pass is known from the sorting information and the number of objects stored in the memory 26 in the first pass. Accordingly, when the number of objects (the division 3) of the stacking unit 21d is 0, the allocation of the stacking unit 21d is not performed, and the portion of the stacking unit 21d is allocated to a section having a particularly large number of objects.
[0034]
During the sorting, when the stacking unit 21 having a large number of objects becomes full, the stacking is performed in the second stacking unit 21 to prevent overflow. After the end of the second pass, the stacking unit 21 is optimally allocated similarly to the second pass, and then the third pass is performed. After the third pass, the sorting of the sheets is completed in a predetermined order.
[0035]
As described above, according to the order table created in advance based on the information added to the paper sheet, in order to perform the three-pass classification by the three-pass method based on the radix sort theory, in the first pass, By using the partition plate 22, the allocation of the stacking unit 21 and the re-supply order are changed to eliminate overflow, and from the second pass onward, the route and the number of articles are determined from the sorting information of the paper sheets sorted by the first pass. By knowing (accumulation amount (thickness)), in the second pass and third pass, the assignment of the sorting accumulation box to the sorting information is not performed for the one with zero objects but for the one with a large number of objects. Thus, efficient route assembly without overflow can be achieved.
[0036]
As described above, according to the present invention, in the case of performing the three-pass method according to the radix sort theory, it is possible to change the assignment and the re-supply order of the stacking unit (stacking box) 21 by using the partition plate 22. As a result, the route can be efficiently assembled without overflow. As a result, the size of the device can be reduced.
[0037]
【The invention's effect】
As described above, according to the present invention, when stacking conveyed paper sheets in the stacking section, the allocation of the stacking section by the partition plate and the re-supply order of returning the paper sheets to the feeding section are changed. as described above, since a plurality of integrated having different supply order is made, in the case of partitioning by rearranging the sheets conveyed to the predetermined order, to allow a better route sequencing efficiency without overflow, further, The device can be miniaturized.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a sheet sorting apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a control system of the sorting apparatus of FIG.
FIG. 3 is an explanatory diagram of assignment by the sorting device of FIG. 1;
FIG. 4 is an explanatory diagram showing a sorting operation by the sorting device of FIG. 1;
[Explanation of symbols]
Reference Signs List 10 Sheet sorting device 11 Transport path 12 Supply unit 13 Detecting unit 14 Separating unit 15 Two-way detecting unit 16 Alignment unit 17 Elimination box 18 Reading unit 19 Thickness detecting unit 20 Switchback units 21, 21a, 21b, 21c , 21d Stacking unit 22 Partition plate 23 Resupply unit 24 Branching mechanism 25 Control unit 26 Memory unit 27 Stacking order table 28 Route table

Claims (3)

In a sheet sorting device that sorts and conveys sheets in a certain order,
When stacking the paper sheets in a stacking unit, a partition plate that performs a plurality of stacking operations in different supply orders so as to change the assignment of the stacking units and the re-supply order in which the paper sheets are returned to a supply unit. A sorting device for paper sheets, comprising: The partition plate is provided in the stacking unit, located above the paper sheets already stacked in the stacking unit, the paper sheet of claim 1, further characterized in that to integrate the sheet Sorter. Already section of the paper sheet according to claim 1 or 2, characterized in that it comprises a storage means for storing an integrated order that is integrated with the sheet through the partition plate on the integrated sheet apparatus.

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