JPH0769528A - Removing device for abnormal-conveyance state sheet piece - Google Patents

Abstract

PURPOSE:To detect and exclude a sheet piece having an abnormal phase or an abnormal overlap when conveying sheet pieces in recognition of a drift in phase within an allowable range. CONSTITUTION:The adequacy of the phase between sheet pieces S conveyed between sheet piece conveyance paths 31a, 31b and the adequacy of the sheet piece length are discriminated by a sheet piece interval detecting device 32, a sheet piece length detecting device 32, and a sheet piece conveyance phase detecting device. When there is an abnormal phase, an abnormal sheet piece length, or an abnormal sheet piece interval, a control device removes the abnormal sheet piece, and only the sheet pieces having a correct conveyance phase, a correct sheet piece length, and a correct conveyance interval can be fed to the succeeding processes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing a sheet piece having an abnormal conveyance interval, and more particularly, when a sheet piece such as a printing book is conveyed at a predetermined interval, a sheet piece having an abnormality in the conveyance interval and the conveyance state. The present invention relates to a device for removing a sheet piece having an abnormal conveyance interval for removing a sheet.

[0002]

2. Description of the Related Art For example, a sheet of paper (paste) such as a postcard may be attached to a printed book constituting a weekly magazine or magazine.

Here, FIG. 12 shows a schematic process diagram of an example of a means for pasting a postcard between conventional printing books (signs). As shown in FIG. 12, two sliding plates B ₁ arranged in parallel,
A gap G ₁ is formed between B _{2 and the first} printing plate S ₁ is previously placed on the sliding plates B ₁ and B ₂ by straddling the gap G ₁ by an appropriate means. In the gap G ₁ , the first copy S ₁
A feed claw N is provided for pushing in the direction of the arrow (to the right) to convey. Further, on the downstream side of the position where the first printing plate S ₁ is placed, trays P ₁ and P _{2 on} which the _second printing plate S ₂ is placed are provided above the sliding plates B ₁ and B ₂ with a gap G _2. When the feed claw N is moved to the right, the first printing plate S ₁ and the second printing plate S ₂ are simultaneously pushed, and the second printing plate S _{2 is provided.} Is slid down on the slopes of the trays P ₁ and P ₂ , and is conveyed to the right in a state where the _first and second printing sheets S ₁ and S ₂ are superposed. Eventually, the first and second printed sheets S ₁ and S _{2 in the} superposed state are formed.
Arrives below the gluing device and is glued in place (reference numeral 102).

On the other hand, on the slightly upstream side of the gluing device,
Is arrow X₁For placing postcards H that are input from the direction
Second saucer P₃, P_FourIs provided. And the heavy
Combined first and second printed books S₁, S₂Is pushed by the feed claw N
2nd saucer P₃, P_FourWhen it arrives below (reference numeral 10
3), the first and second printed sheets S in the superposed state₁, S₂And postcard
When H and H are pushed at the same time, the postcard H becomes the second saucer.
P₃, P_FourAfter slipping down the slope and joining, the postcard H
Is placed on the glued portion (reference numeral 104). This state
The postcard H is pushed to the second copy S by the pressure roll. ₂
Pasted on.

However, in the above-mentioned conventional sticking means, since the feed claws N are arranged at the predetermined intervals, the printed sheets are certainly conveyed at the predetermined intervals, but the number of processed sheets (the number of stuck sheets) in one hour is at most. It was 10,000 sheets, and it was difficult to perform high-speed processing beyond that.

[0006] Therefore, various sticking devices for sticking objects that can be processed at high speed are conceivable. For example, a device is conceivable in which a printed book placed on a conveyor device such as a belt conveyor is conveyed at high speed, supplied to a sticking device capable of high-speed sticking, and glued by the sticking device. At that time, FIG.
As shown in (A), if the printing sheets S ₁ , S ₂ , S ₃ , S ₄ ... sequentially arrive at a predetermined interval l, it is convenient for performing the pasting process in the high-speed pasting device at high speed and surely. is there.

[0007]

However, as shown in FIG.
As shown in FIG. 13B, when the interval l ₁ between the _first and second sheets S ₁ and S ₂ is slightly narrowed during high-speed conveyance of the sheets, as shown in FIG. ), The interval l ₂ becomes extremely narrow, or, as shown in FIG. 13D, the first sheet S ₁ and the second sheet S ₂ overlap. Cases may occur.

If the copy sheet in each of these cases is conveyed to the sticking apparatus as it is, the second copy sheet S ₂ is conveyed before the sticking apparatus prepares to accept it, causing a jam condition. (FIGS. 13 (B) and 13 (C)), there is a risk that two printing sheets will be simultaneously put into the sticking device (FIG. 13 (D)).

On the other hand, in the case of actually transporting the printing plates at a high speed, it is difficult to keep the spacing between the printing plates strictly constant, and a slight deviation occurs in the spacing. Therefore, it is very convenient if it is possible to judge that the conveyance state is within the standard and send it to the subsequent sticking device if the gap is within the predetermined range even if the gap is slightly different.

Therefore, the present invention has been made to solve the above-mentioned problems, and when an abnormality occurs in the conveyance state between sheet pieces such as a conveyed printing book, a sheet piece having an abnormal conveyance state is generated. It is an object of the present invention to provide a device for removing a sheet piece having an abnormal conveyance state that is designed to remove a sheet.

[0011]

In order to achieve the above object, the present invention generates a reference signal which defines a permissible range of phase shift in the sheet conveyance direction of sheet pieces sequentially conveyed on a sheet piece conveying device. A reference signal generating device, a sheet piece reference length data storage device that stores in advance the data of the reference length of the sequentially conveyed sheet pieces in the conveying direction, and the minimum distance that can be conveyed between the sequentially conveyed sheet pieces. Data storage device for storing the sheet piece minimum interval data in advance, a sheet piece conveyance phase detection device for detecting a phase shift of the sequentially conveyed sheet pieces with respect to the reference signal, and the sequentially conveyed sheets. A sheet piece conveyance interval detection device for detecting the sheet conveyance interval, a sheet piece length detection device for detecting the length of the sequentially conveyed sheet pieces, and the sheet piece conveyance phase detection device When the phase shift of the ejected sheet piece in the conveying direction exceeds the allowable range based on the reference signal, and the sheet piece interval detected by the sheet piece conveying interval detection device is stored in advance in the sheet piece minimum interval data storage device. If the length of the sheet piece detected by the sheet piece length detection device does not match the sheet piece length previously stored in the sheet piece reference length data storage device, each of A control device that controls the removal processing of the sheet piece corresponding to the case.

[0012]

In principle, the conveyance interval of the sheet pieces conveyed on the sheet piece conveying device is synchronized with the reference signal (pulse signal) generated from the reference signal generator, but within a predetermined allowable range. If it is within the allowable range of deviation with respect to the reference pulse in the carrying direction, there will be no problem in processing in the subsequent process. On the other hand, the reference length data of the sequentially conveyed sheet pieces and the minimum interval data between the sheet pieces are stored in advance in the sheet piece reference length data storage device and the sheet piece minimum interval data storage device, respectively.

The phase and the conveyance interval of the sheet pieces conveyed on the sheet piece conveyance device are detected by the sheet piece conveyance phase detection device and the sheet piece conveyance interval detection device, respectively, and the sheet piece length is detected. The length detecting device detects the length of the sheet piece. These detection results are processed by the control device, when the transport phase detected by the sheet piece transport phase detection device is not within the allowable range of the reference signal,
And if the sheet piece conveyance interval detected by the sheet piece conveyance interval detection device is smaller than the minimum interval, and the sheet piece length detected by the sheet piece length detection device is stored in advance in the sheet piece reference length data storage device. If the length of the sheet does not match the length of the sheet, the control device controls the removal processing of the sheet.

[0014]

The present invention will be described below with reference to the illustrated embodiments. 1 (A) and 1 (B) show an overall configuration diagram and a side view of a main part of a collating device M using the present invention, and FIG.
(B), FIG. 3 shows a side view, a plan view and a side view of a main part of the collating device M.

As shown in FIG. 1A, the collating device M is
A book supply device 1 that supplies a book S in order from the left, a first conveyor 2 that conveys the sashimi-sequentially stacked books S to the right, and a sashimi formed by the first conveyor 2. A book accelerating device 3 for accelerating the conveyed book S to convey it at a predetermined interval.
And a multi-layer impeller device 6 for superposing the post-print S received from the book-accelerating device 3 and the postcard H supplied from the post-card supply device 5 one by one, and the print S received from the multi-layer impeller device 6. And a second conveying device 7 for conveying the polymer of the postcard H in a sashimi state. Reference numeral 5a in the postcard supply device 5 is a gun-type gluing device.

Here, as shown in FIG. 1 (B), the printing plate accelerating device 3 is provided with conveyor belts 31a and 31b which are opposed to each other in a sandwich shape.
A photoelectric sensor 32 for detecting the leading end and the trailing end of the book S sandwiched between a and 31b and conveyed in the arrow direction X ₁ is provided. The photoelectric sensor 32 forms a part of the "sheet piece conveyance interval detection device", the "sheet piece length detection device", and the "sheet piece conveyance phase inspection device".
If the transport speed of the first transport device 2 is known, the "printing book (printing book ( It is possible to calculate the “conveyance interval between sheet pieces”, and it is also possible to calculate the “length of a book (sheet piece)” by detecting the leading edge and the trailing edge of one sheet S. By comparing with a reference signal (normal gate signal), which will be described later, it is possible to detect a phase shift in the transport direction of the print.

The printing plate accelerating device 3 is equipped with a transporting path switching device 4 for separately transporting a printing plate in a normal transporting state and a printing block in an abnormal transporting state. Two
Shown in (A) and (B). That is, the transport path switching device 4 includes pulleys 41a and 41b around which one sides of the transport belts 31a and 31b are respectively wound, and a normal print transport in which a print in a normal transport state is transported to the pulley 41a. The belt 43a extends obliquely upward. A normal-print-book conveying auxiliary belt 43b for sandwiching and carrying the book-print S in a sandwich form is mounted on the normal-print-book conveying belt 43a by a pulley 41c.
It is suspended and attached. This pair of conveyor belts 4
The transport path composed of 3a and 43b is used as the normal printing book transport path B _N.
Call. Further, an abnormal print sheet conveyance belt 43c for conveying a print sheet in an abnormal conveyance state is extended obliquely downwardly from the pulley 41b. An abnormal copy book conveyance assisting belt 43d for sandwiching and conveying the copy book S in a sandwich shape is suspended from and attached to the abnormal copy book transfer belt 43c by a pulley 41d. The pair of conveying belts 43c, the conveying path constituted by 43d is referred to as abnormal book blocks conveying path B _U.

On the right side of the pulleys 41a and 41b, there is provided a flap F that sorts the normally conveyed sheet pieces and the abnormally conveyed sheet pieces. In addition,
As shown in FIG. 2 (B), the conveyor belts 31a _{1 to} 31a
₃ and normal book blocks conveyor belt 43a _1, 43a ₂ and the flap F ₁ to F ₄ are arranged alternately, the flaps F ₁ to F
₄ is attached to a drive shaft 44a connected to the output shaft of the rotary solenoid 44.

In the multi-layer impeller device 6, as shown in FIG. 3, a belt 62 is suspended between pulleys 61a and 61b that are vertically opposed to each other, and a plurality of blades are provided on the outer peripheral surface of the belt 62 at predetermined intervals. 63 is erected. The postcard supply device 5 (see FIG. 1) (not shown) is arranged on the blade 63 on the left side of the pulley 61b and on the front side perpendicular to the paper surface. Then, the postcards H discharged from the postcard supply device 5 are first placed on the blades 63 one by one, and then the print sheets S discharged from the transport belts 31a and 31b are placed on the postcard H one by one. Are placed one by one. The postcard H and the copybook S placed on the blade 63 are conveyed to the lower right by clockwise rotation, and are sequentially placed on the conveyer belt 7 (see FIG. 1) in a sashimi state, and are then processed in the next step. It will be transported.

Next, a block diagram of the control system of the removing apparatus shown in FIG. 4 will be described. As shown in FIG. 4, the CPU 81, which is a "control device", generates a reference signal (normal gate signal) that defines a permissible range of deviation of the conveyed printing sheets S in the conveyance direction. Reference signal generator 8
1a is provided. Further, in the CPU 81, the photoelectric sensor 32 (see FIG. 1), a ROM 82 in which a control program is stored, a RAM 83 for temporarily storing data of a processing process, a reference length of a conveyed book, An input section 84 for inputting data on the minimum conveyance interval, reference signal data, etc. (data for a normal gate signal), and a "sheet piece reference" for storing the print length data and the minimum interval data input by the input section 84. Length data storage device (printing reference length data storage unit 85a) "," sheet piece minimum interval data storage device (printing minimum interval data storage unit 85b) "," reference signal data storage unit 85c " 85, and a rotary solenoid 44 for switching and driving the flap F in order to eliminate the copy in the abnormal conveyance state according to the result calculated by the CPU 81 (FIG. 2B). Solenoid driving unit 86 for driving the irradiation) is connected.

Next, the operation of the transport state abnormal sheet piece removing device configured as described above will be described with reference to the schematic flow chart shown in FIG. As shown in FIG. 5, first, as an initial setting, the period and on-time of the reference signal from the input unit 84 (described later), data of the reference length L in the conveyance direction of the book (see FIG. 1B), the book When data such as the transportation speed of the accelerator 3 and the minimum interval data (arbitrarily set according to the transportation speed) is input, these data are stored in the storage unit 8.
5 (step S0). The transport interval l
Is C based on the reference signal, the reference length L, and the conveyance speed.
It is calculated by the PU 81. Next, in the high-speed supply of the copy book, since the initial disturbance is often seen, the flap F is switched to the reject side (abnormal copy book feed path B _U ) (step S
1) Then, the copy book S is conveyed in this state (step S
2) If it is a normal copy book, the flap F is the normal copy book conveyance path B.
_It is returned to the _N side (step S3). Then, the photoelectric sensor 32 checks whether or not the copy book S has arrived (step S4), and then checks whether or not the interval with the previous copy book is too short (step S5, FIG. 6E). )reference). If it is too short (step S5; Yes), the flap F is switched to the abnormal copy transport path B _U (step S5).
7). In step S5, when the interval is not too short (step S5; No), the flap F remains on the normal copy transport path B _N side.

If the phase is not normal (step S6; No), and if the phase is normal (step S6; Yes), two sheets are output (step S8; Ye).
s, see FIGS. 6D and 6F), after the flap F is switched to the abnormal copy transport path B _U (step S7), the process proceeds to step S4. Here, as shown in FIG. 6, the “printing book phase” means the traveling direction of the printing book S with respect to the on-time P _0n of the time width t _on of the normal gate signal P ₀ which is the reference signal (reference pulse signal). Refers to the positional relationship of the tip. Then, as shown in FIG. 6B, the case where the leading edge of the book S is included during the on-time P _0n is “normal phase”, and FIG.
As shown in (C), the case where the leading edge of the book S is not included during the on-time P ⁰ⁿ is “abnormal phase”.

Next, a representative example of the processing operation in this embodiment will be explained based on the timing charts shown in FIGS. That is, [1] FIG. 7 shows the case where the “phase is normal” of the copy books S _{1 to} S ₃ , and [2] FIG. 8 shows the case where the “phase is abnormal” of the copy book S ₂ [3] FIG. 9 shows the case where the phase of the copy S ₂ is “abnormal”, [4] FIG. 10 shows that the copy S ₁ and S ₂ have the phase “2”.
This is the case of “single sheet”. [1] When the phase of each copy is normal (ideal case) (Fig. 7
In this case, as shown in FIG. 7, the phases of the printing plates match at the center of the on-time t _on , and the printing plates are conveyed at a constant interval l. At the time of detection, etc., C
It is processed by the next reference processed signal P _N generated by the PU 81 or the like. (1) Normal gate signal P ₀ ... A pulse having a constant cycle serving as a reference generated by the reference signal generation unit 81a according to the reference signal data input from the input unit 84 (see FIG. 4) to the reference signal data storage unit 85c. The signal is a signal and corresponds to a “reference signal that defines an allowable range of phase shift in the sheet piece conveyance direction”. (2) Paper top pulse P ₁ ... Photoelectric sensor 32 (see FIGS. 1 and 4)
Is a pulse signal generated by the CPU 81 each time the leading edge of the copy book S is detected. (3) Paper piece length signal P ₂ ... From the time from when the photoelectric sensor 32 detects the leading edge of the book S to when the trailing edge of the book S is detected, and the conveyance speed of the book accelerating device 3. The length of the copy book S in the transport direction is calculated. It is the number of pulses corresponding to this length. (4) after the detection of the beginning of the piece of paper-feeding inhibition gate signal P ₃ ... ahead of book blocks S, a certain period of time following book blocks S is turned on (to where?) Is
This is a pulse signal indicating that it should not be performed, and it rises when the beginning of the copy S is detected, and a gate for detecting the case where the next copy is input at an interval shorter than the time required for the flap operation. It is a signal.

As shown in FIG. 7, when the printing sheets S ₁ , S ₂ , S ₃ ... Are conveyed at a constant interval l, the paper piece head pulses P ₁₁ , P ₁₂ , P ₁₃ ... The generated pulses P ₁₁ , P ₁₂ , P ₁₃ ... And each of the printing sheets S ₁ , S ₂ , S
₃ ... By detecting the trailing edge, the CPU 81 generates the paper piece length signals P ₂₁ , P ₂₂ , P ₂₃ . This signal P ₂₁ , P
The lengths of ₂₂ , ₂₂ , P _23, ... Are compared with the reference length L of the book S input in advance in the storage unit 85 in the CPU 81.
The case where the paper piece length signal P _{2n of} an arbitrary printed book is longer than the reference length L of the printed book is the case where the two sheets are output (two sheets are stacked) or more sheets are overlapped (FIG. 6). (D)).

Then, the paper sheet head pulses P ₁₁ , P ₁₂ , P ₁₃
As long as the interval of ... is constant, each copy S ₁ , S ₂ , S ₃
... it is gradually conveyed sequentially normal book blocks conveying path B _N side (see FIG. 2 (A)).

It should be noted that in the flowchart shown in FIG. 5, the processing of the copy sheets S _{1 to} S ₃ shown in FIG.
5; Yes (the interval from the previous copy is not too short) → step S6; Yes (phase is normal) → step S8; No
It corresponds to (not two copies). [2] When the phase of the second copy is abnormal (between the previous copy and
(When the gap is slightly narrow) (see FIG. 8) In this case, as shown in FIG. 8, the leading edge of the first copy S ₁ is located at the center of the on-time P ₀₁ and the “phase is normal”. However, the leading edge of the second copy S ₂ is outside the rising edge of the on-time P ₀₂ , and the “phase is abnormal”. In such a case, in addition to the reference processed signal P _N , the abnormal processed signal P _U generated when the phase is abnormal is processed.

Note that (1) normal gate signal P ₀ , (2) paper piece leading pulse P ₁ , (3) paper piece length signal P ₂ , (4) paper piece insertion prohibition gate signal P ₃ is the same as in the above [1]. Occurs as in the case
Is generated. However, the pulse generation interval of the paper piece leading pulse P ₁₂ of the copy S _{2 having} the phase abnormality becomes slightly shorter, and the paper piece length signal P ₂₂ is generated at a slightly shorter pulse generation interval accordingly.
The paper piece insertion prohibition gate P ₃₂ is also generated at a slightly short pulse generation interval.

The abnormality processing signal P _U includes the following various signals. (5) Rejector operation delay gate P ₄ ... As shown in FIG. 1 (A), the photoelectric sensor 32 and the tip of the flap F are separated by a distance L.
There is a gap of ₀ . Therefore, if the flap F is driven immediately after detecting the phase abnormality of the copy book S,
There is a risk that the normal phase copy S existing above ₀ may be rejected. Therefore, there is a time lag generated to ensure that the normal phase book S existing on the interval L ₀ is conveyed to the normal book conveying path B _N side.
Each time the leading edge of the copy book S is detected, it rises and the interval L ₀
Is continued until the copy book S passes.

Therefore, in the case of FIG. 8, a rejecter operation delay gate P ₄₁ is generated by the detection of the normal phase book S ₁ whose front end is located at the center of the on-time P ₀₁ , and the gate P ₄₁ is generated.
Before ₄₁ disappears, a rejecter operation delay gate P ₄₂ is generated by the next phase abnormal copy S ₂ . Therefore, since the two rejector operation delay gates P ₄₁ and P ₄₂ are continuous, the pulse signal is apparently long. (6) Rejector operation command P ₅ ... Is issued at the same time when the phase abnormal copy S ₂ is detected, and the rejector operation delay gate P
Slightly longer than the ₄ pulse signal. (7) Rejector / Reject pulse P ₆ ... A signal generated to actually drive the flap F while the rejecter operation delay gate P ₄₂ is completed and the rejecter operation command P ₅ is continued. is there. (8) Rejector return command P ₉ ... Generated when the third copy S ₃ with the normal phase is detected again after switching the flap F to the abnormal copy transport path B _U by detecting a phase abnormality It is a signal to be. (9) rejector from return signal P ₁₀ ... is emitted said rejector return instruction P _9, is a signal to make the time lag before returning a flap F on the normal conveyance path.

When the photoelectric sensor 32 detects that the phase of the second copy S ₂ is abnormal, CP
The reject operation command P _{5 and the} like are generated by U81.
On the other hand, the reject operation delay gate P ₄₂ is generated by the CPU 81 at the same time when the copy book S ₂ is detected, and the reject / reject pulse P ₆ is generated due to the difference in time width between the reject operation command P ₅ and the reject operation delay gate P _42. To be done. Since the rejecter / reject pulse P ₆ is generated after the reject operation delay gate P ₄₁ disappears, the first copy S ₁ is conveyed to the normal copy conveyance path B _N side. However, since the flap F is operated by the rejecter / reject pulse P ₆ before the second copy S ₂ arrives at the flap F, it is switched to the abnormal conveyance path B _U side and the second copy S ₂ is transported to the abnormal transport path B _U side and eliminated.

After the second copy S ₂ is removed, the third copy S ₃ is detected by the photoelectric sensor 32. The CPU 81 compares the detection timing of the third copy S ₃ with the on-time P ₀₃ to determine that the third copy S ₃ is in the normal phase, and at the same time, rejects the delay gate. P ₄₃ and the ejector return instruction P ₉ are generated. Immediately after the rejector operation delay gate P ₄₃ disappears, a rejector return signal P ₁₀ is issued, and the flap F is switched to the normal copy transport path B _N. Therefore, the third sheet S ₃ is automatically conveyed to the normal sheet conveying path B _N side.

In the flow chart shown in FIG. 5, the process of the copy book S ₂ of FIG. 8 is performed in the step S5; No (the interval from the previous copy book is not too short) → Step S6; No.
(Phase is abnormal) → Step S7 (reject flap) is applied. [3] When the phase of the second copy is abnormal (
When the conveyance interval is very narrow (see FIG. 9) In this case, as shown in FIG. 9, the “phase is normal” of the first copy S ₁ , but the second copy S ₂ The leading end is located outside the rising edge of the on-time P ₀₂ , the "phase is abnormal", and the interval between the printing sheets S ₁ and S ₂ is very narrow. Even in such a case, in addition to the reference processing signal P _N , the processing is performed by the abnormality processing signal P _U generated when the conveyance interval is abnormal.

(1) Normal gate signal P 0, (2) Paper piece leading pulse P ₁ , (3) Paper piece length signal P ₂ , (4) Paper piece insertion prohibition gate signal P ₃ is the same as in the case of the above [1]. It is generated and generated in the same way. However, the interval between the paper piece head pulse P ₁₂ and the immediately preceding head pulse P ₁₁ of the book S ₂ having a very narrow interval becomes very short, and accordingly, the paper piece length signal P ₂₂ is generated at a very short pulse interval. It For this reason, the paper piece insertion prohibition gate P
₃₁ and P ₃₂ are apparently continuously generated long pulses.

The abnormality processing signal P _U includes the following various signals. (11) Short-pitch paper piece signal P ₇ ... As described above, the normal interval (pitch) between the printing plates S is calculated by the CPU 81 based on the normal gate signal P ₀ , the reference length L of the printing plate, and the conveying speed. However, in the case shown in FIG. 9, the interval between the first copy S ₁ and the second copy S ₂ is very narrow. In such cases, 1
First paper piece leading pulse P ₁₁ and second paper piece leading pulse P
_This is a pulse signal generated when the interval formed by ₁₂ and the pulse interval of the normal gate signal P ₀ are compared, and the difference is a fixed value or less (short pitch). This signal P
_{When 7} is generated, the operation of the flap F is prohibited even if the previous copy S ₁ has a normal phase. The constant value is determined by the interval between the book and the book and the transport speed of the book accelerating device 3. (12) Rejector / reject operation pulse P ₈ ... In the case shown in FIG. 9, the flap F cannot be switched in a short time as described above. That is, it is impossible to flow the first copy S ₁ to the normal copy conveyance path B _N side and the second copy S ₂ to the abnormal copy conveyance path B _U side. Therefore, only when the short-pitch paper strip signal P ₇ is generated, the rejecter operation delay gate P ₄₂ and the rejecter operation command P
_This is a signal generated as a time difference from ₅ . Due to this operation pulse P ₈ , the flap F is abnormally conveyed to the book conveying path B _U.
Switched to the side, the first copy S ₁ and the second copy S ₁
Both ₂ and ₂ are conveyed to the abnormal copy conveying path B _U side.

In this case as well, as in the case shown in FIG. 7, since the leading edge of the _third printing sheet S ₃ is located at the center of the on-time P ₀₃ and is transported (conveyance of normal phase), The rejecter return command P ₉ is generated, and the rejector return signal P ₁₀ is generated immediately after the rejecter operation delay gate P ₄₃ disappears.
Is issued, the flap F is switched to the normal copy transport path B _N side, and the third and subsequent copies S ₃ and S ₄ are automatically transported to the normal copy transport path B _N side.

In the flow chart shown in FIG. 5, the processing of the copy sheets S ₁ and S ₂ of FIG.
o (The distance from the previous copy is not too short) → Step S
6; Yes (phase is normal)-> Step S8; No (does not print two sheets)-> Step S5; Yes (interval between the previous copy is short)-> Step S7 (reject flaps). [4] When two printed sheets overlap (see FIG. 10) In this case, as shown in FIG. 10, the first printed sheet S ₁ is located at the center with respect to the on-time P ₀₁ , but 2 The first copy S ₂ overlaps the first copy S ₁ . Even in such a case, in addition to the reference processing signal P _N , the processing is performed by the abnormality processing signal P _U generated when the conveyance interval is abnormal.

Note that (1) normal gate signal P ₀ , (3) paper piece length signal P ₂ , and (4) paper piece insertion prohibition gate signal P ₃ are as described above.
It is generated and generated in the same way as in [1]. However, since the two printed sheets are overlapped, the first paper piece top pulse signal P
₁₁ is generated, but the second paper piece head pulse signal P ₁₂ is not generated. Further, the paper piece length signal P ₂ is apparently long because the _two printing sheets S ₁ and S ₂ are overlapped with each other, and the paper piece insertion prohibition gate P ₃ is also apparently long.

The delay gate P of the rejector operation_Four，
Rejector operation command P_Five, Rejector / Reject Pal
Space P₆Are generated respectively, and the CPU 81 causes the paper piece length signal to be generated.
P₂Is judged to be longer than the input paper length L,
Wrap F is abnormal. _USwitched to the side, 2
Overprinted S₁, S₂However, both are abnormal copy transport path B _U
Be transported to the side.

In this case also, the same as the case shown in FIG.
To the third copy S₃Is on time P ₀₃Located in the center
Therefore, the ejector return command P₉Is generated and
Vector delay gate P₄₂Immediately after the disappearance of the rejector
Return signal P_TenIs emitted and the flap F is normally printed.
B_NSwitch to the side, and the third and subsequent copies are automatically corrected.
Regular printing book conveyance path B_NIs transported to the side.

In the flow chart shown in FIG. 5, the processing of the printing plates S ₁ , S ₂ , and S ₃ of FIG. 10 is step S5; No (the interval from the previous printing book is not too short) → step S6. Yes (phase is normal) → step S8; Yes
It corresponds to s (put out two sheets) → step S7 (reject flaps). [3] Other Examples of Abnormal Interval Patterns Various abnormal interval patterns other than those illustrated in FIGS. 7 to 10 are conceivable. Specific examples thereof are shown in FIG.
~ (F).

That is, FIG. 11A shows the second copy S ₂
7 is slightly delayed from the on-time P ₀₂ (abnormal phase), and in this case, as in the case shown in FIG. 7, only the copy S ₂ is the abnormal copy transport path B _U side. Be transported to. That is, in the flowchart shown in FIG. 5, the process of the copy book S ₂ is step S5; No (the interval from the previous copy book is not too short) → step S6 (abnormal phase) → step S7 (reject flaps) Yes).

FIG. 11B shows a case where the leading edge of the _second printing sheet S ₂ slightly deviates from the on-time P ₀₂ (abnormal phase), and in this case, it is shown in FIG. Similarly to the case, only the copy S ₂ is conveyed to the abnormal copy conveyance path B _U side.
That is, in the flowchart shown in FIG.
(B) The process of the copybook S ₂ is step S5; No (the gap from the previous copybook is small) → step S6 (abnormal phase) → step S7 (reject flap)
Corresponds to.

[0043] FIG. 11 (C) is a case where the second sheet of book blocks S ₂ tip out very late from the on-time P ₀₂ (abnormal phase), the book blocks S ₃ third sheet Is very close to each other. In this case, the same processing as in the case shown in FIG. 9 is carried out, and both the copy sheets S ₂ and S ₃ are conveyed to the abnormal copy sheet conveying path B _U side. That is, in the flowchart shown in FIG.
The processing of the copybooks S ₂ and S ₃ in FIG.
5; No (the interval with the previous copy is not too short) → Step S6 (phase is abnormal) → Step S7 (reject the flap) → Step S5; Yes (the interval with the previous copy is too short) Too much) → corresponds to step S7 (reject flaps).

In FIG. 11D, the second sheet S ₂ and the third sheet S ₃ overlap each other, and the leading edge of the second sheet S ₂ is almost at the center of the on-time P ₀₂ . Is located in. In this case, the same processing as in the case shown in FIG.
Both the copy sheets S ₂ and S ₃ are conveyed to the abnormal copy sheet conveying path B _U side. That is, in the flowchart shown in FIG.
The process for the 1 (D) copybook S ₂ , S ₃ is step S5; N
o (The distance from the previous copy is not too short) → Step S
6; Yes (phase is normal) → step S8; Yes (2
It corresponds to step S7 → step S7 (reject flaps), and only the copy sheets S ₂ and S ₃ are abnormal copy sheet conveyance path B.
_It is conveyed to the _U side, and the fourth sheet S ₄ is the normal sheet conveyance path B.
Transported to the _N side.

In FIG. 11 (E), the second sheet S ₂ and the third sheet S ₃ overlap each other, and the leading edge of the second sheet S ₂ is the trailing edge of the on-time P ₀₂ . Located close (normal phase),
This is when the leading edge of the fourth copy S ₄ is close to the rising edge of the on-time P ₀₃ (normal phase). In this case, since the trailing edge of the third sheet S ₃ is very close to the leading edge of the fourth sheet S ₄ , there is no room to switch the flap F to the normal sheet conveying path B _u side. Therefore, the _three of the printing books S ₂ , S ₃ and the printing book S ₄ are carried to the abnormal printing book carrying path B _U side. That is, FIG.
In the flow chart shown in FIG.
_2, the processing of S _3, S _4, the step S5; No (distance between the front of the book blocks is not too short) → step S6; Yes
(Phase is normal) → Step S8; Yes (2 sheets output) →
Step S7 (reject flap) → Step S5; Yes (interval between the previous copy is too short) → Step S7 (reject flap),
Book blocks S _2, S _3, S total three abnormalities book blocks conveying path B _{U 4}
Is transported to the side.

FIG. 11F shows the first copy S.₁Tip of
Is on time P₀₁Although it is located near the fall of
(Normal phase) Second copy S₂And the third copy S₃
And the second copy S₂Is the on time
P₀₂It is located near the rising edge of
phase). In this case, the first copy S₁Rear end and second
Copy book S₂The flap F is switched because it is very close to the tip of
I can't afford it. Therefore, the copy S₁And the overprinted S
₂And S₃3 sheets are abnormal copy book conveyance path B_UIs transported to the side.
That is, in the flowchart shown in FIG.
(F) copybook S₁, S ₂, S₃Is processed in step S
5; No (the distance from the previous copy is not too short) → Step
Step S6; Yes (phase is normal) → Step S8; No
(Not printing two sheets) → Step S5; Yes (previous printing
The distance from the book is too short) → Step S7; (Flap
Reject), and the copy S₁, S₂, S₃
3 sheets in total are abnormal copy book conveyance path B_UIs transported to the side. Well
Also, the fourth and subsequent print sheets S are normal print sheet conveyance path B._NTransport to side
To be done.

[0047]

As described above, according to the present invention, the presence or absence of the phase abnormality of the sheet pieces conveyed on the sheet piece conveying device and the overlapping of the sheet pieces are discriminated, and the phase abnormality or the sheet pieces overlap. If there is such a sheet piece, the removal processing control of the corresponding sheet piece is performed, so that only the sheet piece having the normal phase and the sheet piece having no overlap can be sent to the subsequent process.

[Brief description of drawings]

FIG. 1A is an overall configuration diagram of an embodiment of a collating device that uses a device for removing abnormally conveyed sheets according to the present invention; FIG.
[Fig. 3] is a side view of a main part of the collating device.

FIG. 2 is a diagram showing a main part of the removing device, FIG.
FIG. 3B is a side view around the flap, and FIG. 3B is a plan view around the flap.

FIG. 3 is a side view of a multi-layer impeller device of the collating device.

FIG. 4 is a block diagram of a control system used in the removing device.

FIG. 5 is an operation flowchart of the removing device.

6A is a view showing an ideal normal phase, FIG. 6B is a view showing an ideal normal phase, a normal phase which is slightly advanced but a normal phase which is slightly delayed, and FIG. 6C. The figure which shows the abnormal phase which advanced a little too much, and the abnormal phase which has moved a little too late, respectively, (D) is a figure which shows two sheets (two sheets are piled up),
(E) is a diagram showing a case where the first copy is in a normal phase but the second copy is in an abnormal phase, and (F) is a case where the first copy is in a normal phase but two It is a figure which shows the case of output.

FIG. 7 is a timing chart when the removing device has a normal phase.

FIG. 8 is a timing chart in the case of a phase abnormality of the removing device (the interval is slightly narrow).

FIG. 9: Abnormal phase of the removing device (the interval is very narrow)
It is a timing chart in the case of.

FIG. 10 is a timing chart when two sheets of the removing device are stacked.

FIG. 11 is a diagram showing specific examples of various phase abnormalities.

FIG. 12 is a diagram illustrating the principle of a conventional collating device.

FIG. 13 is a diagram showing an example of a conveyance interval abnormality when a copybook is conveyed by the collating device.

[Explanation of symbols]

B _N ... normal book blocks conveying path B _U ... abnormality book blocks conveying path F ... flap S ... book blocks (sheet piece) 3 ... book blocks accelerator 4 ... transport path switching device 5 ... postcard feeder 6 ... multi impeller device 31a, 31b ... Conveying belt 32 ... Photoelectric sensor (sheet piece conveying interval detecting device, sheet piece length detecting device) 81 ... CPU (sheet piece conveying interval detecting device, sheet piece length detecting device, sheet piece conveying phase detecting device, control device) ) 85 ... storage unit 85a ... copy book length data storage unit (sheet piece length data storage device) 85b ... press book minimum interval data storage unit (sheet piece minimum interval data storage device) 85c ... reference signal data storage unit

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 18, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

BACKGROUND ART For example, weekly, sheet piece (pasting material) of a postcard or the like, in the book blocks constituting the magazines may be pasted.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

Next, the operation of the transport state abnormal sheet piece removing device configured as described above will be described with reference to the schematic flow chart shown in FIG. As shown in FIG. 5, first, as an initial setting, the period and on-time of the reference signal from the input unit 84 (described later), data of the reference length L in the conveyance direction of the book (see FIG. 1B), the book When data such as the transportation speed of the accelerator 3 and the minimum interval data (arbitrarily set according to the transportation speed) is input, these data are stored in the storage unit 8.
5 (step S0). The transport interval l
Is C based on the reference signal, the reference length L, and the conveyance speed.
It is calculated by the PU 81. Then, it switches the flap F for initial disturbances seen often in rejection <br/> extract (abnormal book blocks conveying path B _U) side in fast supply of book blocks (step S
1) Then, the copy book S is conveyed in this state (step S
2) If it is a normal copy book, the flap F is the normal copy book conveyance path B.
_It is returned to the _N side (step S3). Then, the photoelectric sensor 32 checks whether or not the copy book S has arrived (step S4), and then checks whether or not the interval with the previous copy book is too short (step S5, FIG. 6E). )reference). If it is too short (step S5; Yes), the flap F is switched to the abnormal copy transport path B _U (step S5).
7). In step S5, when the interval is not too short (step S5; No), the flap F remains on the normal copy transport path B _N side.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

Next, a representative example of the processing operation in this embodiment will be explained based on the timing charts shown in FIGS. That is, [1] FIG. 7 shows the case where the “phase is normal” of the copy books S _{1 to} S ₃ , and [2] FIG. 8 shows the case where the “phase is abnormal” of the copy book S ₂ [3] FIG. 9 shows the case where the phase of the copy S ₂ is “abnormal”, [4] FIG. 10 shows that the copy S ₁ and S ₂ have the phase “2”.
This is the case of “single sheet”. [1] When the phase of each copy is normal (ideal case) (Fig. 7
In this case, as shown in FIG. 7, the phases of the printing plates match at the center of the on-time t _on , and the printing plates are conveyed at a constant interval l. At the time of detection, etc., C
It is processed by the next reference processed signal P _N generated by the PU 81 or the like. (1) Normal gate signal P ₀ ... A pulse having a constant cycle serving as a reference generated by the reference signal generation unit 81a according to the reference signal data input from the input unit 84 (see FIG. 4) to the reference signal data storage unit 85c. The signal is a signal and corresponds to a “reference signal that defines an allowable range of phase shift in the sheet piece conveyance direction”. (2) Paper top pulse P ₁ ... Photoelectric sensor 32 (see FIGS. 1 and 4)
Is a pulse signal generated by the CPU 81 each time the leading edge of the copy book S is detected. (3) Paper piece length signal P ₂ ... From the time from when the photoelectric sensor 32 detects the leading edge of the book S to when the trailing edge of the book S is detected, and the conveyance speed of the book accelerating device 3. The length of the copy book S in the transport direction is calculated. It is the number of pulses corresponding to this length. (4) after the detection of the beginning of the piece of paper-feeding inhibition gate signal P ₃ ... ahead of book blocks S, the next book blocks S a certain period of time is projected input to the flap F
It is a pulse signal indicating that it should not be performed, and it rises when the beginning of the copy S is detected, and is for detecting the case where the next copy is input at an interval shorter than the time required for the flap operation. It is a gate signal.

Claims (1)

[Claims] 1. A reference signal generator that generates a reference signal that defines a permissible range of phase shift in the transport direction of sheet pieces sequentially conveyed on a sheet piece conveying apparatus; A sheet piece reference length data storage device pre-stored data of the reference length of the direction, a sheet piece minimum interval data storage device pre-stored data of the minimum interval that can be conveyed between the sequentially conveyed sheet pieces, A sheet piece conveyance phase detection device for detecting a phase shift in the conveying direction with respect to the reference signal of the sequentially conveyed sheet pieces, and a sheet piece conveyance interval detection device for detecting a conveyance interval of the sequentially conveyed sheet pieces, A sheet piece length detection device that detects the length of the sheet pieces that are sequentially conveyed, and a phase shift in the conveyance direction of the sheet pieces that is detected by the sheet piece conveyance phase detection device is the base. When the allowable range based on the quasi signal is exceeded, and when the sheet piece interval detected by the sheet piece conveyance interval detecting device is smaller than the sheet piece minimum interval stored in advance in the sheet piece minimum interval data storage device, and the sheet When the length of the sheet piece detected by the sheet length detection device does not match the sheet piece length previously stored in the sheet piece reference length data storage device, control for performing removal processing control of the sheet piece corresponding to each of these cases An apparatus for removing a sheet piece having an abnormal conveyance interval, which comprises: