JPH08268629A - Conveying paper sorting device - Google Patents

Abstract

(57) [Summary] [Purpose] To reliably stack and stack single-piece sheets conveyed at a predetermined stacking pitch by a predetermined number. [Structure] A first transport delivery 2 that transports a single-piece sheet 5 at a predetermined overlapping pitch, and a second transport delivery 3 that follows it.
And the second transport delivery 3 is controlled by the control unit 8 so that the second transport delivery 3 is in a stopped state when the single-piece sheets 5 of the sorting unit are received from the first transport delivery 2 and stacked, while the transport of the first transport delivery 2 is performed. Provided along the path are a counter 6 for counting the number of single-piece sheets 5 and stoppers 7a, 7b which are relatively movable in the mutual contact / separation direction so as to sandwich the conveyed single-piece sheets 5 in the vertical direction. When the count value of the counter 6 reaches the number of sorting sheets input in advance, the control unit 8 drives and controls the stoppers 7a and 7b to temporarily sandwich the single-sided sheet 5 and form a sorting boundary at this sandwiching portion. To do.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying paper sorting apparatus, and more particularly, to conveying single-piece sheets in a state of overlapping each other at a predetermined overlapping pitch, and dividing these single-piece sheets into a predetermined number on the way of conveyance. The present invention relates to a transport paper sorting device.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 6-
The sorting device described in Japanese Patent No. 45419 is known. This sorting device descends on the upstream pressing material that can be lowered onto the support roll of the upstream conveyor, and on the downstream conveyor downstream from this upstream pressing material by a distance corresponding to approximately one unit length of a single-piece sheet. When a predetermined number of single-sided sheets counted by a counter have passed through the supporting roll, the two pressing members are simultaneously lowered to divide the row of single-sided sheets. It is configured to do.

[0003]

However, in this conventional example, the distance between the upstream side pressing member and the downstream side pressing member is adjusted so as to correspond to one unit length of the single-piece sheet to be targeted. Since it is necessary, the structure becomes complicated and the adjustment work is complicated, and it is not easy to control so that the pressing members are simultaneously lowered on different conveyors. SUMMARY OF THE INVENTION It is an object of the present invention to provide a conveying paper sorting device that eliminates such inconvenience.

[0004]

In order to achieve the above-mentioned object, a conveying sheet sorting apparatus of the present invention comprises first conveying means for conveying single-piece sheets at a predetermined overlapping pitch, and the first conveying means.
Second transporting means provided at a position lower than the first transporting means on the downstream side of the transporting means of the second transporting means, and the second transporting means is conveyed from the first transporting means. In order to receive and stack the single-piece sheets of the unit, at least at the time of stacking, there is a transport control means for controlling to transport at a lower speed than the first transport means, and along the transport path of the first transport means. Provided are: counting means for counting the number of single-piece sheets conveyed at a predetermined overlapping pitch; and sorting means for temporarily sandwiching the single-piece sheets conveyed at a predetermined overlapping pitch from the vertical direction to form a dividing boundary. On the other hand, there is provided sorting control means for driving the sorting means when the count value of the counting means reaches the number of sorting sheets inputted in advance.

Further, since the second transport means receives and stacks the single-piece sheets of the sorting unit transported from the first transport means, at least at the time of stacking, the single-sheet sheets are in an advanced state to the transport path, It is preferable to provide an abutting guide that regulates the leading edge of the sheet.

[0006]

The number of single-piece sheets conveyed by the first conveying means at a predetermined overlapping pitch is counted by the counting means,
When the count value reaches the number of sorting sheets entered in advance, the sorting means sandwiches the single-sided paper from above and below,
The sorting sheets are fed to the second conveying means, while the succeeding one-piece sheets are stopped by the first conveying means and are separated from the sorting sheets by the separating sheet. When the second conveying means is in a stopped state or is conveyed at a speed lower than that of the first conveying means, It is stacked in a divided state on the second transport means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. Here, FIG. 1 is a schematic side view showing a conveyance sheet sorting device and its control system, and FIG.
4 is a schematic side view for explaining the operation of the stopper as the sorting means, and FIG. 5 is a time chart showing the sorting operation.

As shown in FIG. 1, a conveying paper sorting device 1
Includes a first transport delivery 2 which is a first transport means which is a conveyor, a second transport delivery 3 which is a second transport means which is also a conveyor, and a third transport delivery 4 which is also a conveyor. The second transport delivery 3
Is provided at a position lower than the first transport delivery 2 on the downstream side, while the second transport delivery 3 and the third transport delivery 4 are continuously provided at the same height position.
The downstream end of the first transport delivery 2 and the second
The upstream end of the transport delivery 3 is vertically overlapped. The first transport delivery 2 transports the single-sheet paper 5 supplied from a paper supply unit (not shown) at a predetermined overlapping pitch.

Along the transfer path of the first transport delivery 2,
A counter 6 which is a counting means for emitting a laser to detect the overlapping portion of the front ends of the single-sided sheets 5 and counting the number of sheets.
And a pair of upper and lower stoppers 7a, 7b serving as sorting means that forms a sorting boundary by temporarily sandwiching the single-sided sheet 5 from above and below to prevent its transfer. Further, a guide plate 9 extending from the lower end of the stopper 7a located above to the counter 6 is provided (see FIGS. 2 to 4).

Then, the count signal of the counter 6 is sent to the control section 8 which is a sorting control means, and when the control section 8 judges that the count value has reached a predetermined value inputted in advance, the lower stopper 7b is moved to the upper stopper. It is configured to drive in the approaching direction toward 7a. This control unit 8
Is configured to also control the drive of the first transport delivery 2, and can detect the transport distance of the single-sided sheet 5 by the first transport delivery 2 by a signal from the encoder 10.

On the other hand, in the second transport delivery 3, the single-piece sheet 5 in the sorting unit transported from the first transport delivery 2 is sent.
In order to receive and stack the sheets, an abutting guide 11 that regulates the leading end of the single-piece paper 5 at the time of stacking is provided. The abutting guide 11 is normally in a state of advancing into the conveying path to regulate the front end of the single-sided sheet 5 (state of FIG. 1),
After stacking the single-piece sheets 5 of the sorting unit in a predetermined state, when the sheets 5 are transferred to the third conveying delivery 4, they are configured to withdraw from the conveying path, and the advancing / retreating operation thereof is controlled by the control unit 8.

Further, the above-mentioned control unit 8 also serves as a transportation control means for the second transportation delivery 3. The second transportation delivery 3 is normally stopped and the stacking of the single-piece sheets 5 in the sorting unit is completed. Then, driving is performed for a predetermined time to control the stacked single-piece sheets 5 to be transported toward the third transport delivery 4. Further, the control unit 8 also controls the transportation of the third transportation delivery 4, and the third transportation is performed so that the sorted and stacked single-piece sheets 5 transferred from the second transportation delivery 3 are sequentially stocked. The delivery 4 is driven intermittently.

Next, with reference to FIGS. 2 to 5, an operation of sorting the single-piece sheets 5 conveyed at a predetermined overlapping pitch into a predetermined number of sorting units will be described. First, the vertical length (depth) of the single piece paper 5 and the number of divided units are input to the control unit 8. In the present embodiment, the vertical length is Dcm, and the number of divided units is N. It will be described as being set to. In the initial state, the transport deliveries 2, 3 and 4 are in a stopped state, the stoppers 7a and 7b are in a non-operating separated position, and the abutting guide 11 is in an advanced state (see FIG. 1).

First, the single-piece sheet 5 is supplied from a sheet supply unit (not shown), and the first transport delivery 2 is driven. Here, since the conveyance speed of the single-piece paper 5 of the first conveyance delivery 2 is slower than the supply speed of the single-piece paper 5 by the paper supply unit, the single-piece paper 5 overlaps at a predetermined pitch according to the speed difference. In this state, it is transferred by the first transfer delivery 2. Then, when the first single piece sheet 5a is detected by the counter 6, a leading signal is generated in the controller 8 and the conveyance is continued. N sheets of single-sided paper 5 have passed through the counter 6 and N
When the counter 6 detects the + 1st single piece sheet 5b, the head signal is again generated in the control section 8 and the control section 8 starts calculating the transfer distance of the single piece sheet 5 based on the encoder signal.

When the transfer distance reaches a predetermined value, for example, if the overlapping pitch of the single piece paper 5 is 1/16 × D,
When the transfer distance T becomes A + D-3 / 48 × D (A is the distance from the center of the counter 6 to the center of the stopper 7b, see FIG. 2, but FIGS. 2 to 4 show the positional relationship and length of these. (Not shown accurately), in other words, the stopper 7b is driven for a predetermined time when the position of 45/48 × D from the tip of the N + 1th single piece sheet 5b reaches the center of the stopper 7b. Thereby, as shown in FIG. 3, the rear end side of the position of 45/48 × D from the front end of the single piece paper 5b is clamped by the stoppers 7a and 7b for a predetermined time, and N +.
The transfer of the first and subsequent single-piece sheets 5b, 5 is blocked for a predetermined time, while the N-th single-piece sheets 5a, 5 are transferred as they are. Therefore, as shown in FIG. 4, there is a gap between the N-th single piece sheet 5 and the (N + 1) th single piece sheet 5b to set the division boundary.

The transferred first to N-th single piece sheets 5a, 5
Are sequentially dropped from the first transport delivery 2 to the second transport delivery 3, and their tips are stacked by being guided by the abutting guide 11. Then, when it is detected that the N-th single piece sheets 5 are stacked, the second transport delivery 3 is driven for a predetermined time, and the abutting guide 11 is withdrawn from the transport path for a predetermined time and sorted. The stacked N single-piece sheets 5 are transferred, and after a predetermined time, the third sheet 5 is transferred to the third sheet.
The transport delivery 4 is driven for a predetermined time, and the N single-piece sheets 5 move from the second transport delivery 3 onto the third transport delivery 4 and are stocked.

At this time, each of the N + 1th single piece sheets 5a and the subsequent single piece sheets 5a has already been released from the sandwiched state by the stoppers 7a and 7b and is transported by the first transport delivery 2. Then, the 2N + 1th single piece sheet 5 is the counter 6
From the above, T = A + D-3 / 48 × D
When the transfer distance becomes, the stopper 7b is driven again for a predetermined time to set the dividing boundary, and 2N is set in the same manner as described above.
The +1 to 3Nth N pieces of the separated and stacked single-sided sheets 5 are the second conveyance delivery 3 to the third conveyance delivery 4
It is moved up and stocked. In this way, the single-piece sheets 5 conveyed at a predetermined overlapping pitch can be divided into N sheets, stacked, and sequentially stocked. The sorted single-piece sheets 5 stocked on the third transport delivery 4 are sequentially moved to different locations.

The present invention is not limited to the above-described embodiment, but for example, the second transport delivery 3 may be driven at a lower speed than the first transport delivery 2 instead of being in a stopped state at the time of stacking. Further, the timing of driving the stoppers 7a and 7b is set according to the overlapping pitch of the single piece sheets 5 and the conveyance speed of the first conveyance delivery 2 (the transfer distance of the single piece sheets 5). Further, the butting guide 11 is
It may be configured such that it is always in the advancing state and does not exit when conveying the separated piece-stacked single-piece sheets 5 but advances when guiding the single-piece sheets 5 to be stacked. Need not necessarily be provided.

[0019]

As is apparent from the above description,
Advantageous Effects of Invention According to the present invention, it is possible to reliably classify and stack single-piece sheets conveyed at a predetermined overlapping pitch by a predetermined number.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a conveyed sheet sorting device and its control system.

FIG. 2 is a schematic side view illustrating the operation of a stopper that is a sorting unit.

FIG. 3 is a schematic side view illustrating the operation of a stopper that is also a partitioning unit.

FIG. 4 is a schematic side view explaining the operation of a stopper that is also a partitioning unit.

FIG. 5 is a time chart showing a classification operation.

[Explanation of symbols]

 1 Transported Paper Sorting Device 2 1st Transported Delivery 3 2nd Transported Delivery 4 3rd Transported Delivery 5, 5a, 5b Single-sided Paper 6 Counter 7a, 7b Stopper 8 Controller 10 Encoder 11 Strike Guide

Claims (2)

[Claims] 1. A first transport means for transporting single-piece sheets at a predetermined overlapping pitch, and a downstream side of the first transport means.
A second transporting unit provided at a position lower than the first transporting unit, the second transporting unit receiving the single-piece sheets of sorting unit transported from the first transporting unit. For stacking, at least a stacking stop is provided at the time of stacking, or it has a transfer control unit for controlling to transfer at a lower speed than the first transfer unit, and transfers at a predetermined overlapping pitch along the transfer path of the first transfer unit. A count means for counting the number of single-piece sheets and a sorting means for temporarily sandwiching the single-sheet sheets conveyed at a predetermined overlapping pitch from the vertical direction to form a dividing boundary are provided. Is provided with a sorting control means for driving the sorting means when the number of sorting sheets inputted in advance has been reached. 2. The second conveying means receives and stacks the single-piece sheets of the sorting unit conveyed from the first conveying means, and therefore, the second conveying means is in an advanced state with respect to the conveying path at least at the time of stacking, and the single-piece sheets are stacked. 2. The conveying sheet sorting device according to claim 1, further comprising an abutting guide that regulates the tip of the sheet.