JP6550597B2 - Collation device - Google Patents

Description

The present invention has a plurality of sheet feeding units that feed sheets one by one from a bundle of sheets stacked on a sheet feeding table by sheet feeding rollers, and stacks each other while conveying sheets fed from each sheet feeding unit. In the collating device that is set, the paper should be fed one by one when feeding from the paper feeding unit, but the paper under the paper to be fed overlaps (in many cases slightly shifted) When a double feed to be sent out occurs, it is easy to find a collation bundle with this double feed from a large number of stacked collation bundles while minimizing the decrease in the operating rate of the device as much as possible. It relates to a technique for aligning the end faces of the bundle.

A collating device that sells a bundle of advertisements delivered as a bundle for each type of advertisement on a plurality of paper feeders, picks up one sheet at a time, and superimposes them into a bundle of delivery units. Used in stores.
Although each paper feed unit is originally intended to send out advertisements one by one each time without fail, it may occasionally cause double feeding (paper feed error) to simultaneously feed two sheets. Whether or not double feeding has occurred is detected by detecting the transport amount required for the leading end to the trailing end of the fed sheet to pass through the predetermined position. If the detected transport amount is equal to or greater than a predetermined amount, double feeding is performed. This is because if the two ads overlap one another, they should be offset from each other in the front-rear direction, so the transport amount will be longer than in the case of one. If double feeding is detected, the apparatus is temporarily stopped as a paper feed error. The user removes one of the two sent advertisements from the stack containing the multi-delivery advertisement, and then resumes the operation of the device.

In addition to a stacker tray for discharging a bundle collated normally, there is provided a collating machine provided with a reject storage unit for discharging a bundle in which a sheet feed error including a double feed occurs in any of the sheet feeding units. No. 1 (see, for example, Patent Document 1).
In the collating apparatus described in Patent Document 1, the collated bundle is fed from the transport path toward the stacker tray.
In addition to branching the conveyance path to the reject storage section, a switching gate is provided at the branch section, and normal bundles are switched to the stacker tray, and bundles that contain paper feed errors such as double feeding are switched to the reject storage section. The gate is controlled, and a bundle including a sheet feeding error is distributed to improve the operation efficiency without stopping the collating operation.

However, since a reject accommodating part, a switching gate and its driving mechanism are required, there is a problem that the apparatus becomes complicated and the material cost increases.
However, if the apparatus is stopped each time double feed occurs, there is a problem that work efficiency is deteriorated.

On the other hand, in order to make it easy for the user to take out a stack of multiple bundles collated by this collating device (hereinafter referred to as “stack”), it is also widely used as a device that carries it out by a conveyor and lifts it up by an elevator. (See, for example, Patent Document 2).

This lift-up device makes it easy to take out the stack, but the taken-out stack is a stack of bundles that come out of the collating device, so it is not fully aligned,
Before delivery, it was necessary to arrange manually.

JP, 2011-126659, A (paragraph [0029], [0030], [0031], Drawing 1) Japanese Utility Model Publication 7-2355 (FIG. 1)

However, as described in the above [Background Art] section, the prior art requires a reject accommodating portion, a switching gate, and a driving mechanism thereof, and thus the apparatus becomes complicated. In addition, there is a problem that the material cost increases.
Further, in the technique described in Patent Document 2, although the lift-up device makes it easy to take out the stack, since the taken-out stack is a stack of the bundle coming out of the collation device, it is sufficient. There is a problem that it is not complete and it is necessary to perform alignment before providing for delivery.

An object of the present invention is to realize a collating apparatus that eliminates the need for aligning a taken-out stack without providing a reject accommodating portion and a switching gate in view of the problems of the prior art.

The present invention has the following configurations in order to solve the above problems.
According to a first configuration of the present invention, there are provided a plurality of sheet feeding units, which are provided side by side in the vertical direction and feed sheets one by one from a sheet feeding table on which a plurality of sheets are stacked.
Transport amount detecting means provided in each sheet feeding unit for detecting a transport amount from the leading end of the fed-out sheet passing a predetermined position to the trailing end passing the predetermined position;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulator that accumulates a stack of sheets stacked on the collating conveyance path to form a stack;
Aligning means for aligning the edges in the stack of sheets and in the stack of sheets stored in the storage section;
Moving means for moving the position of the stack stored in the storage unit;
A timing reference signal having a predetermined cycle is repeatedly transmitted to the plurality of sheet feeding units, and each time the timing reference signal is generated, a timing that is sequentially delayed from the top according to the vertical position of each sheet feeding unit from the timing reference signal The collating control means for operating the paper feeding units so that the leading edges are aligned when the papers sent from the paper feeding units overlap each other in the collating conveyance path When,
In a collating apparatus having
The collation control means
If the transport amount detected by the transport amount detection means is equal to or more than the set upper limit, the transmission of the timing reference signal is interrupted after the detection, and all the bundles whose collation has started at the time of the detection are After discharging to the storage unit, unless the operator restarts the operation, the timing reference signal is not restarted.
If the transport amount detected by the transport amount detecting means is equal to or more than the lower limit value set and not more than the upper limit value, the transmission of the timing reference signal is interrupted after the detection, and at the time of the detection After discharging all the bundles that have started to be accumulated in the accumulation unit, the accumulated stack is moved by the moving means and carried out from the accumulation unit, and the subsequent bundles are accumulated in the accumulation unit that is empty after the carry-out. It is a collation apparatus characterized by restarting the transmission of the reference signal at a proper timing.

According to a second configuration of the present invention, in the first configuration, when it is detected that the transport amount detected by the transport amount detection means is not more than the upper limit value and not less than the lower limit value, the collation is performed. Immediately before the control unit discharges the bundle including the detected paper to the accumulation unit, the alignment of the edge by the alignment unit is interrupted, and the alignment is resumed for the bundle accumulated again after the stack is carried out. Is a collating apparatus characterized in that it is controlled.

According to a third configuration of the present invention, there are provided a plurality of sheet feeding units which are provided side by side in the vertical direction and feed sheets one by one from a sheet feeding table on which a plurality of sheets are accumulated.
Transport amount detecting means provided in each sheet feeding unit for detecting a transport amount from the leading end of the fed-out sheet passing a predetermined position to the trailing end passing the predetermined position;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulator that accumulates a stack of sheets stacked on the collating conveyance path to form a stack;
Aligning means for aligning the edges in the stack of sheets and in the stack of sheets stored in the storage section;
Moving means for moving the position of the stack accumulated in the accumulation unit;
A timing reference signal having a predetermined cycle is repeatedly transmitted to the plurality of sheet feeding units, and each time the timing reference signal is generated, a timing that is sequentially delayed from the top according to the vertical position of each sheet feeding unit from the timing reference signal The collating control means for operating the paper feeding units so that the leading edges are aligned when the papers sent from the paper feeding units overlap each other in the collating conveyance path When,
In a collation apparatus having
The collation control means includes
If the transport amount detected by the transport amount detection means is equal to or more than the set upper limit, the transmission of the timing reference signal is interrupted after the detection, and all the bundles whose collation has started at the time of the detection are After discharging to the storage unit, unless the operator restarts the operation, the timing reference signal is not restarted.
When the transport amount detected by the transport amount detection means is not less than the set lower limit value and does not exceed the upper limit value,
Before the bundle including the detected sheet is discharged to the storage unit, the alignment operation by the alignment unit is interrupted or the operation mode of the alignment operation is changed, and the repetition of the transmission of the timing reference signal is continued as it is. It is the collation apparatus characterized by this.

According to a fourth configuration of the present invention, as the aligning means, a back jogger that taps and aligns an edge orthogonal to a direction in which the bundle is discharged, and an edge parallel to the direction in which the bundle is discharged If the transport amount detected by the transport amount detection means is below the set upper limit value and above the lower limit value, the back jogger alignment operation is interrupted and the side jogger alignment is stopped. The collating apparatus of the third configuration is characterized in that the operation continues as it is.

According to a fifth configuration of the present invention, there are provided a plurality of sheet feeding units which are provided side by side in the vertical direction and feed sheets one by one from a sheet feeding table on which a plurality of sheets are stacked;
Transport amount detecting means provided in each sheet feeding unit for detecting a transport amount from the leading end of the fed-out sheet passing a predetermined position to the trailing end passing the predetermined position;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulator that accumulates sheets stacked on the collating conveyance path to form a stack;
Aligning means for aligning the edges in the stack of sheets and in the stack of sheets stored in the storage section;
Moving means for moving the position of the stack stored in the storage unit;
A timing reference signal having a predetermined cycle is repeatedly transmitted to the plurality of sheet feeding units, and each time the timing reference signal is generated, a timing that is sequentially delayed from the top according to the vertical position of each sheet feeding unit from the timing reference signal A collation control means for operating each section so that the leading edges are aligned when the sheets sent from each sheet feeding section overlap each other in the collating transport path
In a collating apparatus having
The collation control means includes
When the transport amount detected by the transport amount detection means exceeds the set upper limit value, transmission of the timing reference signal is interrupted after the detection, and all bundles whose collation has started at the time of detection are accumulated. After discharging to the department, the transmission of the timing reference signal is not resumed unless it is restarted by the operator.
When the transport amount detected by the transport amount detection means is equal to or more than the lower limit value and equal to or less than the upper limit value,
After the detection, the transmission of the timing reference signal is interrupted and the stack of the accumulator is moved by the moving means, the position in the accumulator is shifted and stopped by the amount of the movement, and the stack is moved onto the stack after the movement. The collating apparatus is characterized in that the transmission of the timing reference signal is resumed at a timing at which the subsequent bundles are partially shifted and overlapped.

According to a sixth configuration of the present invention, there are provided a plurality of sheet feeding units which are provided side by side in the vertical direction and feed sheets one by one from a sheet feeding table on which a plurality of sheets are stacked;
Transport amount detecting means provided in each sheet feeding unit for detecting a transport amount from the leading end of the fed-out sheet passing a predetermined position to the trailing end passing the predetermined position;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulator that accumulates a stack of sheets stacked on the collating conveyance path to form a stack;
Aligning means for aligning the edges in the stack of sheets and in the stack of sheets stored in the storage section;
Moving means for moving the position of the stack stored in the storage unit;
A timing reference signal having a predetermined cycle is repeatedly transmitted to the plurality of sheet feeding units, and each time the timing reference signal is generated, a timing that is sequentially delayed from the top according to the vertical position of each sheet feeding unit from the timing reference signal A collation control means for operating each section so that the leading edges are aligned when the sheets sent from each sheet feeding section overlap each other in the collating transport path
In a collating apparatus having
The collation control means
If the transport amount detected by the transport amount detecting means is equal to or more than the upper limit value set in advance, the transmission of the timing reference signal is interrupted after the detection, and the bundle whose collation has started at the time of the detection is After all the discharge to the storage unit, unless the operator restarts the operation, the timing reference signal is not restarted.
When the transport amount detected by the transport amount detection means does not exceed the upper limit value and is equal to or greater than a preset lower limit value,
After the detection, the transmission of the timing reference signal is interrupted, and immediately before the bundle containing the detected paper is discharged to the storage unit, the stack of the storage unit is moved in one direction by the moving means, The position in the storage unit is shifted in one direction by the movement and stopped, and then the bundle containing the detected sheets is stacked on the moved stack, and the stack of the storage unit is moved immediately thereafter. The collating apparatus is characterized in that the means is moved in a direction opposite to the one direction, and the transmission of the timing reference signal is resumed at a timing such that the subsequent bundles overlap after the movement.

In the seventh configuration of the present invention, in place of the transport amount detection means in the first to sixth configurations, the bundle is located below the position where the lowermost sheet feeding unit joins in the collating transport path. As a bundle conveyance amount detecting means for detecting the conveyance amount required for the front end and the rear end of the advertisement to pass the predetermined position,
A collating apparatus is characterized in that the bundle conveyance amount detected by the bundle conveyance amount detection means is used instead of the conveyance amount detected by the conveyance amount detection means.

In the first configuration of the present invention, since the aligning means for aligning the edges of the sheet bundle accumulated in the accumulation unit and between the sheet bundles is provided, there is an effect that the aligning work after the sheet bundle is taken out becomes unnecessary. .
When the transport amount detected by the transport amount detection means exceeds the upper limit value indicating that the alignment by the aligning means becomes impossible, the transmission of the timing reference signal is automatically stopped and no new collating operation is performed. Since only the bundle of sheets (several bundles) entering the collating operation at the time of detection is discharged to the accumulation unit, and the collating apparatus does not operate again unless the operator restarts, the worker discharges to the accumulation unit. It is also possible to take out the collated bundle from the storage section, or settle the bundle which has been multi-fed from the bundle (the sheet is fed by overlapping two sheets from the sheet feeding section). It is possible to search for the cause and to investigate the cause of double feeding.

If the detected transport amount is equal to or less than the upper limit value or more than the lower limit value at which it is determined that double feed is present,
The transmission of the timing reference signal is interrupted and the new collating operation is stopped, and only the bundle whose collating operation has already been started when the double feed is detected is all discharged to the storage section, and the overlapped bundle is group(
When the stacking is carried out by the moving means and finished being carried out, the collating operation is automatically resumed, and the accumulation of the sheet bundle is resumed in the vacant accumulation unit.

After all, even if double feed occurs, if the detected transport amount is above the lower limit value and below the upper limit value,
The collation operation stop time due to double feed is only the time to discharge several bundles including double feed bundles and move them from the time of double feed detection, which can greatly reduce the reduction in device operation rate. It has the effect of being able to

In the second configuration, in the first configuration, when a double feed in which the detection amount by the transport amount detection unit is greater than or equal to the lower limit value and less than or equal to the upper limit value is detected, a sheet bundle with the double feed (double feed bundle) is detected. Just before being discharged to the accumulation unit, alignment of the edge by the alignment means is interrupted, and all bundles starting collating at the double feed detection time are ejected to the accumulation unit, and the accumulated stack is accumulated by the moving unit As the bundle is unloaded from the storage unit and re-accumulated in the empty storage unit, alignment is automatically restarted.
First, in the stack that has been transported from the storage unit first, the boundary between the lower layer part that is aligned by the aligning means and the end face is aligned, and the upper layer part that is not aligned because the aligning means is interrupted are known. In addition, the aligning operation of the aligning means is interrupted immediately before the multi-feed paper bundle is discharged to the storage section, so that the multi-feed generated bundle is not subjected to the aligning operation, so the end faces are aligned. The lower bundle of paper in the upper layer portion which is not folded is a double feed bundle, and it becomes very easy to find the double feed bundle, and a bundle later than a bundle which has been collated at the double feed detection time. In contrast, since the alignment by the alignment means is automatically resumed, there is an effect that the normal operation can be quickly restored.

In the third configuration, when the conveyance amount detected by the conveyance amount detection means is equal to or more than the upper limit value, the transmission of the timing reference signal is interrupted, and the sheet bundle whose collation has started at the detection time is accumulated. Since the collating operation is not resumed unless the operator restarts after discharging to the storage compartment, the worker can also take out the collated bundle discharged to the storage section, and also from the bundle. The effect is that it is possible to find out which bundle has been sent and to investigate the cause of double feed.

In addition, when the transport amount is equal to or more than the lower limit value and equal to or less than the upper limit value, the alignment operation by the alignment unit is interrupted before the bundle (double feed bundle) including the sheet whose transport amount is detected is discharged to the storage unit. Or, the operation mode of the aligning operation is changed (for example, the stroke of the aligning operation is shortened or the aligning means is retracted, etc.), and the repeated transmission of the timing reference signal is continued. Since the sheet bundle after being discharged to the sheet is not subjected to the aligning operation or the double feed for insufficient is out of the end face of the bundle, there is an effect that it becomes easy to find the double feed bundle. .

In the fourth configuration, the aligning means is provided with a back jogger striking an edge perpendicular to the direction in which the bundle is discharged and a side jogger striking an edge parallel to the direction in which the bundle is discharged.
Since it is only for the back jogger to interrupt the alignment operation or change the operation mode, the double feed detection has an effect of being easy as in the third configuration.

In the fifth configuration, first, when the transport amount detected by the transport amount detector exceeds the upper limit value, the transmission of the timing reference signal is interrupted, and the bundle whose collation has started at the time of the detection is performed. Since the timing reference signal is not restarted unless the operator restarts the operation after all the waste has been discharged to the storage unit, the worker must collect the collated bundle discharged to the storage unit. It is also effective to take out from the bundle, and to find out the double feed from the bundle in a calm manner and to investigate the cause of the double feed.

Next, when the transport amount detected by the transport amount detection unit is equal to or more than the lower limit value and equal to or less than the upper limit value,
The timing reference signal is interrupted to interrupt the collating operation, and the stack, which has already been discharged into the storage section, is moved by the moving means to stop its position, and the timing is such that the subsequent bundle overlaps it. Since the transmission of the reference signal is resumed, the moved bundle and the subsequent bundle are
It will shift and overlap by the amount of movement.

If it is assumed that the timing of this movement is before the double feed occurrence bundle is discharged after the previous bundle of the bundle that has caused double feed is discharged, it is at the lowest position of the shifted and overlapped bundle. There is an effect that it is possible to specify the double feed very easily, and even if the movement is slightly more or less than the above timing, the double feed is above and below the surface where the stack is displaced. Since it is certain that it exists in the vicinity, there is an effect that it is possible to easily identify the double bundle.

In the sixth configuration, the effect when the transport amount detected by the transport amount detector exceeds the upper limit value is the same as the fifth configuration.
When the detected transport amount is not less than the lower limit and not more than the upper limit, the transmission of the timing reference signal is interrupted and the stack of the accumulator is moved in one direction immediately before the double feed is discharged to the accumulator. After that, the multi-feed bundle is stacked on the moved stack, and immediately after that, the stack is moved in the direction of returning by the moving means to stop, and the subsequent subsequent bundle is discharged and stacked thereon. Since only the double feed bundle is pushed out by the amount of movement, there is an effect that identification of the double feed bundle becomes extremely easy.

In the seventh configuration, the transport amount detection unit in the first to sixth configurations is a bundle transport amount detection unit. The detected amount is the same regardless of whether the amount of deviation is detected by the conveyance amount detection means or the bundle conveyance amount detection means. Therefore, even if the conveyance amount detection means is replaced with the bundle conveyance amount detection means, it is exactly the same. Therefore, there is no change in the effects in the first to sixth configurations.

It is an external appearance structural perspective view of this invention collation apparatus. FIG. 1 is a front view of the inventive collating apparatus. FIG. 6 is a front view of a sheet feeding unit. It is a top view of an alignment * carrying out part. It is a block diagram showing a control system of the present invention. FIG. 7 is a diagram showing a state in which the sheet bundle has been discharged to the aligning and discharging unit. It is a state diagram in which the back jogger and the side jogger advance to the stack side and the side edges are pushed and aligned in the aligning / unloading unit. The open / close guide is opened, and the moving conveyor is driven to feed the stack. In the first configuration, when a transport amount equal to or less than the upper limit value and greater than or equal to the lower limit value is detected, the stack is discharged and accumulated up to the bundle whose collation has started at the time of detection, and then the elevator plate from the accumulation unit on the moving conveyor It is a figure which shows the condition where the next bundle | flux is going to be discharged | emitted by the accumulation part, after carrying out to the direction of. In the third configuration, when a transport amount that is equal to or less than the upper limit value and greater than or equal to the lower limit value is detected, the alignment operation is interrupted or the alignment operation is performed before the multifeed bundle in which the multifeed is detected is discharged to the accumulation unit. FIG. 6 is a perspective view of a stack formed when the stroke is reduced or the aligning means is retracted (the end face of the bundle after the aligning means is interrupted, etc.). In the fifth configuration, when a transport amount equal to or less than the upper limit value and greater than the lower limit value is detected, the stack of the accumulation unit is moved in one direction by a predetermined dimension immediately before the double bundle is discharged to the accumulation unit. FIG. 10 is a perspective view showing a state where the following sheet bundle is shifted and overlapped on the stack by the movement amount. In the sixth configuration, when a transport amount equal to or less than the upper limit value and greater than or equal to the lower limit value is detected, the stack already accumulated is unidirectionally moved by the moving means immediately before the double bundle is discharged to the accumulation unit. The stack is moved by a predetermined dimension, stopped, the double feed bundle is discharged thereon, and immediately after that, the double feed bundle is put back to the original position and the subsequent bundle is stacked at that position. FIG.

According to an embodiment of the present invention, a conveyance amount detection unit that detects a passing amount (conveyance amount) from when the leading end of a fed sheet passes through a predetermined position to when each trailing end passes in each sheet feeding unit. If the detected transport amount is the same as the length in the paper transport direction, multiple sheets are sent out in a superimposed manner, so there is no so-called double feed, and if the detected transport amount exceeds the length of the paper, double feed Judge as yes.

Therefore, for example, when multiple sheets are sent with the leading and trailing edges aligned, there is no double feeding. However, in practice, the frequency of such double feeding is low, and normal double feeding is not possible. Since the sheet is delivered with the sheet shifted in the delivery direction, there is no practical problem in determining that double feed is present when the detected transport amount exceeds the length of the sheet.

The part where the collated bundle that has been collated is discharged becomes a storage section where the collated bundle is stacked.
In the present invention, the moving means is provided because it is necessary to carry out and move the accumulated bundle of bundles. In addition, when the collated bundles sequentially discharged are stacked, an alignment means is provided for aligning the collated bundles and the sheets in the collated bundle on the side end surfaces thereof, and further detecting the transport amount. Depending on the value of the transport amount detected by the means relative to the set upper limit value and lower limit value, whether or not to stop the paper feed from the paper feed unit, a bundle is formed in the collating transport path A collating control means is provided to perform control to align the tips when going, control of operation of aligning means, control of movement of moving means, and the like.

[Common items in the embodiment]
Hereinafter, embodiments of the collating apparatus of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view of the structural relationship of an embodiment of a collating apparatus to which the present invention is applied. FIG. 2 is a front view of the control panel 3 of FIG. 1 with the cover removed. The sheet feeding unit 2 is provided in ten stages on the left and right, and the sheets fed one by one from each of the left and right stages are collated so that the leading end (lower end) is aligned in the central vertical conveyance path 14. Folding knife 17 is fed from folding feeding unit 4
The sheet is conveyed by the sheet discharge conveyance path 21 to the sheet discharge port 22 in a state of being sandwiched by the folded sheet folded by the folding roller 20 and discharged from the sheet discharge port 22 to the accumulation portion 23 (on the moving conveyor 8).

FIG. 3 is a front view showing the paper feeding unit 2.
The sheet bundle 36 is arranged on the sheet feeding plate 37 while being obliquely shifted. The feed roller 26 and the flexible plate 32 are in pressure contact with the leading end of the sheet bundle 36. The shaft of the paper feed roller 26 is rotationally driven by a paper feed motor (not shown).
An auxiliary sheet feed roller 27 having the same shape as the sheet feed roller 26 is provided upstream of the sheet feed roller 26 in the sheet feed direction. Both the shaft of the auxiliary paper feed roller 27 and the shaft of the paper feed roller 26 have a toothed pulley 28.
, 29 is provided, and the drive is transmitted by the toothed belt 30.

When the paper feed motor rotates, the paper feed roller 26 and the auxiliary paper feed roller 27 rotate. Then, the uppermost sheet is fed by the auxiliary sheet feeding roller 27 between the sheet feeding roller 26 and the stack plate 32. At this time, even if trying to pass two sheets at the same time, due to the frictional force between the paper plate 32 and the paper,
Since the advance of the second and subsequent sheets is blocked, only the topmost sheet will be delivered.

One sheet fed out is added to the pair of horizontal conveying rollers 33 and is fed out in the direction of the arrow. The horizontal conveying roller pair 33 is always driven to rotate by a main motor (not shown). At this time, the sheet detection sensor 34 detects the front end and the rear end of the sheet to detect the transport amount therebetween.

As shown in FIG. 2, the sheets fed from the respective sheet feeding units 2 merge into the vertical conveyance path 14 and are conveyed downward while being stacked. The vertical conveyance path 14 is provided with a pair of vertical conveyance rollers 24 at a predetermined interval, and is always rotated by a main motor (not shown).
A folded sheet feeding unit 4 is provided below the row of the 10-stage sheet feeding unit 2 on one side. The folded sheet is stacked on the folded sheet feeding unit 4, and the configuration is the same as that of the other sheet feeding unit. The fed-out folded sheet passes through the folding conveyance path 16 and enters the folding plate 19, and the leading end abuts against the stopper 18, and the folded sheet stops in a form of blocking the lower end of the vertical conveyance path 14. The folding knife 17 descends at the timing when the sheet bundle collated in the vertical conveyance path 14 descends from above. The stopped folded sheet is folded in half by the folding roller 20 with the sheet bundle that has descended from above to the inside. In this way, a bundle (a bundle of advertisements provided for delivery) in which another sheet is sandwiched between the folded sheets is discharged from the sheet discharge outlet 22 through the sheet discharge conveyance path 21 thereafter. The folding conveyance path 16 and the paper discharge conveyance path 21 are also always driven by the main motor.

As shown in FIGS. 1 and 2, the aligning / unloading unit 10 is provided below the folding sheet feeding unit 4.
The aligning / unloading unit 10 receives the sheet bundle discharged from the sheet discharge port 22, accumulates the peripheral edges while aligning them by aligning means (back jogger 9, side jogger 5), and accumulates them to some extent (hereinafter referred to as a stack). When is formed, the stack is unloaded.
The sheet bundle discharged from the sheet discharge port 22 comes into contact with the front end guide 6 and falls onto the moving conveyor 8. When the discharge is repeated, the sheets are sequentially stacked thereon to form a stack.

FIG. 4 is a top view showing the alignment / unloading unit 10.
The bundle discharged from the collator in the direction of the arrow A abuts on the guide surface of the tip guide 6 and is discharged onto the moving conveyor 8. While the discharge is repeated, the movable portions of the back jogger 9 and the side jogger 5 as the aligning means reciprocate. The sheet bundle is sandwiched and aligned between the movable portion of the back jogger 9 and the guide surface of the leading end guide 6. Similarly, the sheet bundle is sandwiched and aligned between the movable portion of the side jogger 5 and the guide surface of the open / close guide 7 at the aligning position. The open / close guide can pivot about the support point at the alignment position and the retraction position. While the sheet bundle is being discharged, it is positioned at the alignment position.

The back jogger 9 has a support portion fixed to a rack 25 (see FIG. 2) of the collating machine, and a movable portion capable of reciprocating operation in the arrow direction. A drive motor and a crank mechanism are provided inside the support portion, and convert the rotational movement of the motor into a reciprocating movement of the movable portion.
The side jogger 5 is the same as the back jogger 9 except that the support portion is provided on the frame of the aligning / unloading portion 10.

When the stack is stacked to a predetermined height and the fullness is detected by the fullness detection sensor (not shown) (or, if a stack of a predetermined number of copies is formed), the discharge of the sheet bundle is stopped and the opening / closing is performed. The guide 7 is opened to the retracted position, and the belt of the moving conveyor 8 is driven to circulate, and the stack is moved in the direction of arrow B and is discharged in the direction of arrow C.

As shown in FIG. 1, an elevator plate 11 capable of moving up and down, and an elevating mechanism 13 for moving the elevator plate 11 up and down are provided on the outlet side of the moving conveyor 8. The elevator plate 11 stands by at a position slightly lower than the belt surface of the moving conveyor 8. The unloaded stack is transferred onto the elevator plate 11. When the loading sensor 12 of the elevator board 11 detects the arrival of the stack, the lifting mechanism 13 operates to lift the elevator board 11, lifts the stack and stops.

FIG. 5 is a block diagram showing a control system of the present invention.
The main body of the collating apparatus 1 has a main control unit, and each sheet feeding unit 2 individually has a sheet feeding control unit, and the aligning and unloading unit has an aligning and unloading control unit. The paper feed control units are provided for the number of paper feed units.
The pulse output means is provided with a circular plate having holes arranged in the circumferential direction on one of the shafts rotated by the main motor, and the optical sensor is arranged so that the hole of the circular plate can be detected. During motor rotation, pulses are always output. The pulse is sent to the main control unit and the paper feed control unit, and each operation timing during the operation of the main motor is timed by counting the pulse. Hereinafter, the term “pulse” refers to a pulse output by the pulse output means.

When the start / stop switch provided on the operation panel 3 (see FIG. 1) of the main body is pressed,
The main motor starts to rotate. Next, the main control unit simultaneously transmits a paper feed trigger signal to the paper feed control unit of each paper feed unit 2 at a predetermined timing. This paper feed trigger signal is a timing reference signal that serves as a reference for paper feed timing. The sheet feeding control unit of each sheet feeding unit 2 delays the sheet feeding trigger signal by a predetermined delay pulse, drives the sheet feeding motor, and starts sheet feeding. The predetermined number of delay pulses differs depending on each paper feed unit, and each paper feed unit 2 has a larger number as the paper feed unit 2 is positioned below so that the leading ends of the paper are aligned and overlapped in the vertical conveyance path 14. It is stored in the control unit.

Therefore, the sheets delivered at each timing become one bundle with aligned leading edges in the vertical conveyance path 14. The folding sheet feeding unit 4 is also provided with a sheet feeding control unit. In the case of the folded sheet, a delay pulse is set so that the leading end of the folded sheet can abut against the stopper 18 and wait slightly before the overlapped bundle reaches the lowermost end of the vertical conveyance path 14.

In this way, the folded paper is sandwiched between the folding rollers 20 by the folding knife 17 and folded in two, and at the same time, the bundle descending from above is sandwiched between them to form a bundle, and the bundle is further conveyed,
The paper is discharged from the paper discharge port 22.
Since the paper feed trigger is repeatedly transmitted at a predetermined pulse interval, a bundle of paper (a bundle of advertisements to be delivered) is formed repeatedly one after another, and is sequentially discharged from the paper discharge port 22.

The main control unit transmits a jog start signal to the aligning / unloading control unit at the same time when a paper feed trigger is first generated after the start. When receiving the jog start signal, the alignment / unloading control unit starts driving the pack jogger drive motor and the side jogger drive motor, and each jogger starts to reciprocate. Thus, the sheet bundle is repeatedly discharged and accumulated to align the edges of the stack 38 formed.

When the fullness detection sensor detects a fullness, the alignment / unloading control unit sends a fullness signal to the main control unit. When the main control unit receives the full signal, it stops sending the paper feed trigger, completes collation of all the bundles that have been collated at that time, discharges them, and aligns and discharges the discharge completion signals. Send to department. When the discharge completion signal is received, the alignment / unload control unit stops the operation of the side jogger and the back jogger, and drives the open / close guide drive motor to the retraction position. Further, the moving conveyor drive motor is rotated to drive the conveyor in a circular manner, and the stack thereon is carried onto the elevator plate.

When the stack sensor detects the arrival of the stack on the elevator plate, the aligning / carrying control unit drives the elevator lifting motor to lift the stack and drives the opening / closing guide driving motor to move the opening / closing guide 7. Set as a guide position. Furthermore, driving of the back jogger drive motor and the side jogger drive motor is started, and the reciprocation operation of each jogger is resumed. The main control unit issues an unloading completion signal, and in response to this, the main control unit resumes the repetition of the sheet feeding trigger (timing reference signal) transmission.

When it is detected by the placement sensor that the user has taken out the stack on the elevator board 11, the elevator board 11 is lowered to stand by for the next stack to be fed.
Instead of the fullness detection sensor, it may be carried out when a bundle of a predetermined number of copies is formed. The numerical value is previously input to the operation panel 3 or the like, and stored in the main control unit or the unloading / loading control unit.

FIGS. 6 and 7 illustrate the aligning operation, and FIG. 6 is referred to as a stack in which a plurality of sheet bundles are discharged. FIG. 7 shows a state where the back jogger 9 and the side jogger 5 have advanced to the stack 38 side, and the side edges have been pushed and aligned.

FIG. 8 shows the state in which the open / close guide 7 is opened and the moving conveyor 8 is driven to feed the stack 38.
When paper is fed, each paper feed unit 2 detects the transport amount required for the paper to pass through a predetermined position from the front end to the rear end. The transport amount is detected by the sheet detection sensor 34 in FIG. 3 as the number of pulses from the timing when the leading end of the sheet passes through to the timing when the trailing end of the sheet passes.

If this transport amount is less than the lower limit (set value) at which it is judged that there is double feed, it is assumed that there is no abnormality.
Continue paper feed trigger transmission. On the other hand, if the upper limit value (setting value) at which alignment by the aligning means becomes impossible is exceeded, the sheet feeding trigger transmission is stopped as a double feed error (second double feed), and the bundle that has started feeding at that time After discharging all, stop the main motor. Thereafter, the operation does not resume unless the user presses the start switch.

If it is not less than the lower limit and not more than the upper limit, it is a double feed error (first double feed), but the main motor is not stopped. The operation will be described below in each embodiment.
The transport amount detection unit may be replaced with a bundle transport amount detection unit. This bundle conveyance amount detection means is provided, for example, in the paper discharge conveyance path 21 in FIG. 2, and the front end and the rear end of the bundle after the sheets fed from the respective paper feeding sections are overlapped to form a bundle. The bundle conveyance amount while passing the position is detected by counting the main pulse. By detecting this, when the double feed sheet out of the bundle is mixed, the bundle conveyance amount becomes longer than normal, so it can be determined that there is double feed.
Further, the transport amount and the bundle transport amount are not limited to counting with the pulse signal, and for example, clock signals transmitted from the main control unit at predetermined intervals may be counted.

Example 1
The first embodiment corresponds to the first configuration and the second configuration.
When the first double feed occurs in any of the sheet feeding units, a signal indicating that the first double feed has occurred is sent from the sheet feeding control unit to the main control unit. The main control unit, together with the first double transmission number, recognizes from which sheet feeding unit the signal has been sent. Then, the transmission of the timing reference signal is interrupted at that time, and at the time of detection, all the bundles that have started to be collated are discharged to the storage unit, and then the stack is unloaded from the storage unit and Accumulate a bunch of. The main control unit then completes the discharge of the first bundle before the bundle including the sheet in which the first double feed signal is detected (hereinafter referred to as the first double feed bundle). A jog stop signal is sent to the aligning / unloading control unit so that the jog (alignment) operation is stopped before the bundle including the bundle in which the double feed signal is detected is discharged. The alignment / unloading controller stops the back jogger and the side jogger drive motors in response to the jog stop signal.

The more the paper feed unit in which the first double feed is detected, the longer it takes to discharge, so it takes more time to send a stop signal.
Then, at the timing when the last sheet bundle is discharged, the main control unit sends a discharge completion signal to the aligning / unloading control unit. In response to this, the aligning / unloading control unit drives the open / close guide drive motor to move to the retracted position. Then, the moving conveyor drive motor is rotated to drive the conveyor in a circular manner, and the stack is carried out on the elevator plate.
After unloading, the opening / closing guide returns to the alignment position, the jogger's operation is started, the repetition of the paper feed trigger is resumed, and the collating operation is automatically resumed.

FIG. 9 shows the state immediately after this restart, and the stack 38 already stacked is the elevator board 1.
It is moved to 1 and the next and subsequent bundles are discharged to the vacant place (after this, the elevator ascends to lift the stack). The uppermost two to three parts of the stack on the elevator board 11 are not aligned, and the lower parts are aligned. The first multi-feed bundle is present at the lowest position of the non-aligned portion, and can be easily identified (when the first multi-feed error is detected, the maximum is from the upstream side. There is a possibility that the feeding for two sets has started, so the stack is moved and discharged after collating and discharging all of them, so it will be within the top two to three parts). In addition, since the double-fed sheets are out of the stack from the first double feed bundle, it is possible to easily identify the double-fed sheets.
In addition, since the collating operation is resumed after unloading, there is no loss of working time due to error processing.

Note that, for example, the first double feed is detected even if the first double feed bundle is aligned, and the first double feed itself is not aligned (for example, the first double feed is detected). Continue the jogger's operation until all the bundles that had been collated at the time it was collated), and search for the top two to three parts of the stack that has been discharged to identify the first double feed bundle be able to.

Example 2
The second embodiment corresponds to the third configuration and the fourth configuration.
In the second embodiment, when the first double feed occurs, the stack is not moved and the alignment operation is stopped. The timing for stopping the aligning operation is most preferably immediately before the bundle including the sheet in which the first double feed is detected is discharged to the storage unit, but the bundle including the sheet in which the first double feed is detected It may be any time before it is discharged to the accumulation part. Therefore, each drive motor of the jogger may be stopped as soon as the first double feed is detected, or the alignment operation is performed immediately before the bundle including the sheet for which the first double feed is detected is discharged to the storage unit. You may make it cancel.

However, in the second embodiment, since the sheet feeding trigger is continuously repeated, that is, the collating operation is continued, the unaligned bundles are stacked on the already aligned stack. When the fullness is detected or the number of copies reaches a predetermined number, the opening and closing guide is opened, the moving conveyor is driven, and the stack is unloaded. After unloading, the open / close guide returns to the alignment position, the jogger operation is started, the repetition of the paper feed trigger is restarted, the collating operation is automatically restarted, and the formation of the next stack is started.

FIG. 10 is a diagram showing the stack that has been carried out. The unloaded stacks are aligned below, but not above. Then, the first double feed bundle exists at or near the lowermost portion of the unaligned portion, which can be easily identified.
When the alignment operation is stopped immediately before the bundle including the sheet in which the first double feed is detected is discharged to the accumulation unit, the first double feed bundle exists at the lowest position of the non-aligned portion. become. If the drive motors of the joggers are immediately stopped when the first double feed is detected, it means that the first double feed bundle is present within three parts from the lowermost part of the unaligned portion. This is because, usually, at the time when the first double feed is detected in the collating apparatus, at most three copies are simultaneously proceeding.
Further, as in the first embodiment, the double-fed sheets are out of the stack from the first double-fed bundle, so it is possible to easily identify the double-fed sheets.

Further, when the back jogger and the side jogger are provided as in the fourth configuration, only the back jogger stops the aligning operation, and the side jogger aligning operation may be continued. The location of the first double feed is determined by the boundary between the aligned and non-aligned parts, so the function can be performed simply by stopping either the back jogger or the side jogger. It is. In addition, the alignment work after taking out the stack is easier than when the back jogger and the side jogger both stop alignment because only one is aligned. Further, since the back jogger's aligning operation is stopped, the double-fed sheets also remain overstretched, so it is possible to specify the multi-fed sheets.

Further, when the first double feed occurs, the alignment operation may not be stopped completely, but may be changed so that the operation stroke of the back jogger or the side jogger is shortened. Alternatively, the alignment operation itself may continue and the back jogger and the side jogger support may be retracted relative to the stack. By doing so, the alignment may become sweet after the occurrence of the first double feed.
In the second embodiment, collation does not stop even when the first double feed occurs, so that the work time loss can be further reduced.

[Example 3]
Example 3 corresponds to the fifth configuration.
In Example 3, when the first double feed occurs, the stack is moved slightly. Specifically, when the first double feed is detected, the open / close guide 7 is immediately opened, and then the moving conveyor 8 is slightly driven to shift the stack position. The timing for driving the moving conveyor is most preferably immediately before the first double bundle is discharged, but it may be slightly different. That is, the conveyor may be driven immediately after the first double feed is detected, or may be moved immediately after the first double feed bundle is discharged, or after 1-2 parts.

Since the paper feed trigger continues to be repeated as it is, that is, the collating operation is continued, a new bundle is piled up on the already prepared stack while being shifted by the amount moved by the moving conveyor.
When fullness is detected or a predetermined number of copies are reached, the moving conveyor 8 is driven to carry out the stack. After unloading, the open / close guide returns to the alignment position, and the repetition of the paper feed trigger resumes.
The collating operation is automatically resumed to start forming the next stack.

FIG. 11 is a diagram showing the stack that has been carried out. The unloaded stack is shifted in position between the lower side and the upper side. When the conveyor is driven immediately before the first double feed is discharged, the first double feed is present at the lowest position of the upper part, and can be easily specified. Therefore, even if the timing of moving the conveyor is slightly more or less than that, the first double bundle can be found by searching for the vicinity where the position of the stack is shifted.

In Example 3, the alignment may or may not be stopped before the first double bundle is discharged. When the alignment is stopped, the double-fed sheets are out of the stack from the first double-fed bundle, which makes it easy to identify the multi-fed sheets. If the alignment is not stopped, it is possible to obtain a bundle in which the leading edge and the trailing edge are aligned perpendicular to the bundle receiving direction from the bottom to the top. However, since the opening / closing guide remains open after the first double feed, both side edges parallel to the bundle receiving direction become a bundle that is not aligned after the first double feed (FIG. 11 does not cancel the alignment). It is a figure of the case).

It is desirable that the amount of movement of the stack (the amount of displacement between the lower and upper sides) be such that the stack does not collapse even if it is stacked with a gap in between, for example, the full width (between both ends parallel to the receiving direction) 40
If the stack is 0 mm wide, about 50 mm is desirable.

Example 4
In Example 4, when the first double feed occurs, the stack is moved slightly,
Immediately after discharging the bundle on which the first double feed has occurred, return the stack. Specifically, when the first double feed is detected, the opening and closing guide is immediately opened, and then the moving conveyor is slightly driven to shift the stack position. The steps so far are the same as those in the third embodiment.
In the fourth embodiment, the stack position is shifted, and immediately after discharging the first double feed bundle thereon, the moving conveyor is driven in the reverse direction to return the stack. After that, continue the paper feed trigger,
That is, the collating operation is continued.

When fullness is detected or a predetermined number of copies is reached, the moving conveyor is driven to carry out the stack. After unloading, the opening / closing guide returns to the alignment position, the repetition of the sheet feeding trigger is resumed, the collating operation is automatically resumed, and formation of the next stack is started.

FIG. 12 shows the stack that has been carried out.
Only the first multi-feed is in a state of protruding by the amount shifted. What is necessary is just to test this protruding bundle.
Also in the fourth embodiment, the position of the stack may be shifted and the alignment may or may not be canceled at the same time, and in the case of the cancellation, the sheet double-fed from the first double-fed bundle may be out of alignment. If not stopped, it is the same as in Example 3 to obtain a bundle in which the leading edge and the trailing edge perpendicular to the bundle receiving direction are aligned from the bottom to the top. FIG. 12 is a diagram when not stopping.

1 Collating device (collating machine)
2 Feeder 3 Operation Panel 4 Folding Feeder 5 Side Jogger 6 Tip Guide 7 Opening / Closing Guide 8 Moving Conveyor 9 Back Jogger 10 Aligning / Unloading Unit 11 Elevator Plate 12 Placement Sensor 13 Elevating Mechanism 14 Vertical Conveying Path 16 Folding Conveying Path 17 Folding knife 18 Stopper 19 Folding plate 20 Folding roller 21 Discharge transport path 22 Discharge outlet 23 Accumulator 24 Vertical transport roller pair 25 Base 26 Feed roller 27 Auxiliary feed roller 28 Toothed pulley 29 Toothed pulley 30 Toothed Belt 31 Paper presence / absence detection sensor 32 Sabaki plate 33 Horizontal transport roller pair 34 Paper detection sensor 35 Transport guide 36 Paper bundle 37 Paper feed plate 38 Stack

Claims (15)

A plurality of paper feed units that are arranged in a vertical direction and each feed paper one by one from a paper feed tray on which a plurality of papers are stacked;
Double feed detection means provided in each of the plurality of paper feed units and detecting double feed of the fed sheets;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulation unit that accumulates a sheet bundle discharged from the collating conveyance path to form a stack;
Aligning means for aligning the edge of the sheet bundle stored in the storage section, the aligning means having a jogger for aligning the edge of the sheet bundle;
When the double feed is detected by the double feed detection means, the double feed bundle, which is a sheet bundle including the paper whose double feed is detected by the double feed detection means, is transported to the storage unit before by changing the operating conditions of the operation alignment by aligning means, the sheet bundle without lath without a stack location is unloaded to the storage unit, on top of the stack has already been aligned in the storage unit, including the heavy Okutaba A control unit that controls the stacking of paper bundles with non-aligned edges ;
A collating apparatus characterized by comprising:   The collating apparatus according to claim 1, wherein the control unit performs control so as to generate a sheet bundle in which the edges are not aligned by interrupting alignment of the edges by the aligning unit.   The collating apparatus according to claim 2, wherein the control unit controls the edge alignment by the aligning unit to be interrupted by stopping the movement of the jogger. The jogger is a first jogger that strikes and aligns one edge of a sheet bundle;
A second jogger that strikes and aligns a different edge than the first jogger;
Have
The control unit controls to stop the movement of the first jogger and to continue the movement of the second jogger when a double feed is detected by the double feed detecting means. The collating apparatus according to claim 3.   5. The control unit according to claim 2, wherein the control unit controls the edge alignment by the aligning unit to be interrupted immediately before the bundle including the sheet in which the double feed is detected is discharged to the accumulation unit. A collating device according to any one. The control unit repeatedly transmits a timing reference signal of a predetermined cycle to the plurality of sheet feeding units.
The collating apparatus according to any one of claims 1 to 5, wherein transmission of the timing reference signal is continued also after that when double feeding is detected by the double feeding detection means.   2. The control unit according to claim 1, wherein the control unit controls the operation of the aligning unit so as to generate a sheet bundle having non-aligned edges by changing the operation of aligning the edges of the sheet bundle. Collation device. The aligning means has a jogger that strikes and aligns the edge of the sheet bundle stored in the storage section.
8. The apparatus according to claim 7, wherein the change is made by a change in an operating stroke of the jogger. A plurality of paper feed units that are arranged in a vertical direction and each feed paper one by one from a paper feed tray on which a plurality of papers are stacked;
Double feed detection means provided in each of the plurality of paper feed units and detecting double feed of the fed sheets;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulation unit that accumulates a sheet bundle discharged from the collating conveyance path to form a stack;
Aligning means for aligning the edges of the stack of sheets stored in the storage unit;
And moving means for moving the stack stored in the storage unit,
A collating apparatus comprising: a control unit configured to move the accumulated stack by the moving unit and to unload the stack from the storage unit when the double feed detection unit detects a double feed.   When the multi-feed is detected by the multi-feed detection means, the control unit discharges all the bundles that have been collated at that time to the storage unit, and then moves the accumulated stack by the moving means. 10. The collating apparatus according to claim 9, wherein the collating apparatus is controlled. The control unit repeatedly transmits a timing reference signal of a predetermined cycle to the plurality of sheet feeding units.
When double feed is detected by the double feed detection means, the transmission of the timing reference signal is interrupted thereafter, and the timing is such that the subsequent bundle is accumulated after the stack is unloaded by the moving means. The collation apparatus according to claim 9, wherein transmission of the reference signal is resumed.   12. The collating apparatus according to claim 11, wherein the control unit restarts the transmission of the timing reference signal, and further controls to resume edge alignment by the aligning means. A plurality of paper feed units that are arranged in a vertical direction and each feed paper one by one from a paper feed tray on which a plurality of papers are stacked;
Double feed detection means provided in each of the plurality of paper feed units and detecting double feed of the fed sheets;
A collated conveyance path in which the sheets fed from the respective sheet feeding units are stacked and bundled while being conveyed;
An accumulator for accumulating a stack of sheets conveyed from the collating conveyance path to form a stack;
Aligning means for aligning the edges of the stack of sheets stored in the storage unit;
Moving means for moving the stack stored in the storage unit;
Opening / closing means provided downstream of the accumulation unit and opened when the accumulated stack moves
When a double feed is detected by the double feed detection means, a control section that opens and closes the opening and closing means, moves the stack of the storage section by the moving means, and controls so that a positional deviation from the stack to be stored thereafter occurs,
A collating apparatus characterized by comprising:   The control unit further repeatedly transmits a timing reference signal having a predetermined cycle to the plurality of paper feeding units, and also transmits a timing reference signal having the predetermined cycle even when a double feed is detected by the multi-feed detection unit. The collating apparatus according to claim 13, characterized in that:   When the multi-feed is detected, the control unit further moves the stack of the storage unit in one direction with the moving means to stop the position of the stack, and then a bundle containing the detected paper is obtained. 15. The collating apparatus according to claim 13 or 14, wherein the collating apparatus is stacked on the moved stack, and thereafter, the stack of the storage unit is controlled to move in a direction opposite to the one direction by a moving means. .

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