JPH0789634A - Extraction of signature printed matter - Google Patents

Abstract

PURPOSE:To extract an objective piece of printed matter surely and speedily, omitting the manual work, by detecting the end of signature printed matter which is sent out in a superposed deflected state and shifting an extracted member to an extracting position, on the basis of the time in which the printed matter reaches the extracting position. CONSTITUTION:When signature printed matter is sent out in a superposed deflected state from a rotary printing press machine, the end of the signature printed matter in the superposed deflected state is detected by a photoelectric sensor 60. The transfer speed of the signature printed matter is known by the revolution speed of a driving roller 23, and the time in which the signature printed matter whose end part is detected reaches an extracting position downstream is calculated on the basis of the transfer speed. A member 70a for sampling is shifted from a waiting position to the extracting position downstream, on the basis of the calculated time, and an objective piece of printed matter which is detected can be caught surely. Further, if extracting is carried out along the transfer direction, the flow of the signature printed matter which is detected in the superposed deflected state is not disturbed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing a copy of a folded copy of a copy of a copy of a copy of a copy of a copy of a copy of a copy of a copy of a copy of a copy of a copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the copy of the signature. Regarding

[0002]

2. Description of the Related Art As a conventional method for extracting printed copy sheets of a book, for example, a worker manually pulls out a predetermined number of copies of a printed copy sheet of a copy sheet that are misaligned and carried out from a rotary printing press. Was there. The extracted printed copy of the copy sheet is used when determining the printing state of a large amount of printed copy sheet of the copy sheet at a fixed time interval or a fixed quantity.

[0003]

However, in such a conventional method of extracting a folded-letter printed matter, it is necessary to quickly and surely pull out the folded-letter printed portion, and when the operator is not skilled, it is necessary to remove the folded-letter printed portion. At this time, the flow of the folded printed matter conveyed in a misaligned manner is disturbed, and for example, a stacker of the printed matter printed on the downstream side causes a paper jam, which interrupts the work and lowers the workability. There was a problem. Further, due to the difficulty of securing a labor force in recent years, it is difficult to keep a skilled worker always on the side of the rotary printing press. The present invention has been made in view of such a conventional problem, and a method for extracting a printed copy of a folded sheet, which allows a predetermined number of printed copies of a folded sheet to be extracted quickly and reliably without manual work. Is intended to provide.

[0004]

The gist of the present invention for achieving the above object is to print a signature print at a downstream position of a conveyance path where the signature prints are displaced from the rotary printing press and conveyed out. In the method of extracting one or more copies of a signature print, the edge of the signature print that is misaligned and carried out is detected, and the signature is detected based on the speed at which the signature print is conveyed. The time required for the printed matter to reach the downstream position was calculated, and based on the calculated time, the extraction member (70a) was displaced from the standby position to the downstream position, and then extracted along the transport direction. The present invention lies in a method for extracting a printed matter of a signature.

[0005]

[Function] The signature prints are misaligned from the rotary printing press and carried out. Detects the edges of printed signatures that are stacked and conveyed. The speed at which the signature print is conveyed is, for example,
It is known from the rotation speed of the drive roller (23), and based on the conveyed speed, the time taken for the signature printed matter whose end has been detected to reach the downstream sampling position is calculated.

If the extraction member (70a) is displaced from the standby position to the downstream extraction position on the basis of the calculated time, it is possible to reliably catch the target printed copy of the signature, and further, the conveying direction. If it is pulled out along the line, the flow of the printed copy of the folded-sheet printed matter that is carried out in an overlapping manner will not be disturbed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIG. 1 and FIG.
Is for detecting the edge of the folded printed matter that is carried out by being overlapped from the rotary printing machine (not shown), and the folded printed matter is carried into the edge detecting device 20 on the upstream side of the edge detecting device 20. Belt 10 for carrying in is connected, and edge detection device 20
A belt 15 for carrying out the signature print product from the edge detection device 20 is connected to the downstream side of the.

The main body 21 of the edge detecting device 20 is provided with two parallel conveying belts 22 for connecting the carrying-in belt 10 and the carrying-out belt 15. The conveyor belt 22 is wound around a drive roller 23 and a driven roller 24, and the tight side of the conveyor belt 22 is wound around a slack prevention roller 26 and a feed roller 25. The slack prevention roller 26 has a screw 27 for adjusting the vertical position.
It is supported by the main body 21 via. A motor 28 is mounted on the main body 21, and a drive belt 29 is wound around the output pulley of the motor 28 and the drive roller 23. A folding roller 30 is arranged adjacent to the downstream side of the drive roller 23. The folding roller 30 is located between the two parallel conveyor belts 22 and has a larger diameter than the driving roller 23. Drive roller 23 and folding roller 3
A folding belt 32 for folding the central portions of the folded printed matter in both sides in a mountain shape is wrapped around 0, and the central portion of the folded printed matter, which is the loose side of the folding belt 32, The conveyance direction line is gradually inclined upward from the general conveyance surface of the signature printed matter, which is the belt surface on the loose side of the conveyance belt 22.

Above the folding roller 30, a restraining roller 40 for restraining the top of the folded printed matter folded in a mountain shape by the folding belt 32 is arranged. The pressing roller 40 is swingably supported by a supporting member 42 via an arm member 41, and the pressing roller 40 is urged by its own weight in a direction in which a signature print is suppressed. Conveyor belt 22
Similarly, a pressing roller 43 is arranged on the opposite side of the driven roller 24 with the pressing roller 43 interposed therebetween.
The support roller 42 is swingably supported by the support member 42, and the holding roller 43 is biased by its own weight in a direction to hold the signature print.

Similarly, above the folding roller 30,
A bending belt 50 is provided for bending the front end edge of the folded printed matter transported obliquely upwardly downward. The bending belt 50 is wound around a driving roller 53 and a driven roller 54. The loose side of the bending belt 50 is wound around the driven roller 54 via the feed roller 55. The drive roller 53, the driven roller 54, and the feed roller 55 are rotatably supported by the base plate 51, and the base plate 51 is supported so as to be vertically swingable with the rotation center of the drive roller 53 being concentric. An extension line of the conveyance direction line in the central portion of the folded printed material intersects the bending belt 50 which is wound around the driven roller 54 and the feed roller 55 and runs obliquely downward, and the folding belt 32. The front end edge of the central portion of the folded printed matter conveyed by is contacted obliquely downward after being abutted, is deformed from a substantially straight state to a downwardly bent state, and is passed one after another.

When the rigidity of the signature print to be handled is high and the front edge of the center of the signature print hits the bending belt 50 running diagonally downward, the base plate 51 is swung upward. The angle of the bending belt 50 running diagonally downward is made shallow, and conversely, because of its low rigidity, the bending belt 50 running diagonally downward is attached to the front edge of the central portion of the signature printed matter. When hitting in a state of being dripping downward, the base plate 51 is rocked downward to deepen the angle of the bending belt 50 running diagonally downward so as to hit reliably. As shown in FIG. 1 and FIG. 2, a reflective photoelectric sensor 60 is located above the bending belt 50 that travels diagonally downward, and the photoelectric sensor 60 is a signature printed matter immediately before being deformed. Is directed toward the front edge of the central part of the. The photoelectric sensor 60 is capable of detecting a change in the distance between the reflection type photoelectric sensor 60 and the front edge of the central portion of the folded printed matter, which is bent downward from a substantially straight state, by a change in reflected light. The body 61 of the photoelectric sensor 60 is supported by the body 21 of the edge detection device 20 so that the angle can be adjusted.

A change in the reflected light from the photoelectric sensor 60 is converted into, for example, a change in voltage, and the change in voltage is compared by a comparator (not shown). When the voltage is equal to or higher than a certain voltage, a pulse is emitted to check the signature. It is configured to be able to detect the passage of the front edge of the central portion of the printed matter. You may make it arrange | position a phototransistor on the optical path of reflected light. The time from the reception of the pulse to the arrival of the leading edge of the signature printed matter at the downstream sampling position is calculated by the transport speed of the transport belt 22. The transport speed is determined by the rotation speed of the drive roller 23. Edge detection device 2
An extraction member 70a is pivotally attached to the rear wall of the main body 21 of No. 0 so as to be swingable between a standby position and an extraction position. The member 70a for extracting is the arm member 70 and the hand member 7
6 and a pair of grip claws 77. Arm member 70
A pinion 71 is fixed to the base end portion of the, and a rack member 72 is meshed with the pinion 71. An output rod 74 of a cylinder member 73 is connected to the rack member 72 so as to be capable of projecting and retracting in the horizontal direction and swinging the arm member 70 in the vertical direction via a pinion 71. Pinion 71
On the opposite side of the rack member 72 across the output rod 74
A guide roller 75 for guiding the horizontal direction is provided.

At the tip of the arm member 70, a pair of gripping claws 77, 77 are located in the carrying-out direction of the signature print.
An enterable position that allows entry of the signature print between
The hand member 76 is tiltably supported at an entry avoidance position where the printed copy of the signature is avoided so as to be conveyed to the side of the belt 15 for discharging. The pair of grip claws 77 are configured to be closed when the signature print enters between them so that the signature print can be gripped. The state where the arm member 70 swings downward and the grip claw 77 is tilted to the enterable position is the extraction position. An extension member 81 is extended rearward on a rear wall portion of the main body 21 of the edge detection device 20, and a rear end of the extension member 81 is used as a stand for leaning the extracted signature print. The member 82 of is fixed. A guide position facing the extending member 81 through the support pillar member 83 with the standing member 82 with a certain gap, and the standing member 8.
The guide member 8 is swingable to a non-guide position apart from
4 are pivoted. A swinging cylinder member 85 for driving the guide member 84 is supported on the rear wall portion of the main body 21.

The standing member 82 is provided with a cylinder member (not shown) for moving the folded printed matter up. A transport device 90 for transporting the folded printed matter that has moved upward to a predetermined position is disposed above the standing member 82. The carrier device 90 is
Endless transport cable 9 routed along the transport path
1, a connecting member 92 attached to the carrying cable 91, a direction changing pulley 93 for changing the carrying direction of the carrying cable 91, and a connection capable of holding and hanging a signature print. Gripper member 9 supported by member 92
It consists of 4 and.

The carrying cable 91 has a circular cross section or a quadrangular cross section, and uses a poly cord which can be bent in any direction. When the conveying cable 91 is hung over the direction-changing pulley 93, the upper surface, the lower surface, or the connecting member 92 of the direction-changing pulley 93 is arranged so that the connecting member 92 does not interfere with the direction-changing pulley 93. The side surface of the carrying cable 91 on the side opposite to the mounting direction is in contact with the direction changing pulley 93.
The gripper member 94 is normally above the member 82 for standing up and can open the insertion opening against the biasing force to insert the signature print. When the signature print is inserted, the biasing force is applied. By this, the insertion port is closed to hold the signature print.

Next, the operation will be described. In FIG. 1, the signature prints are misaligned and carried out from the rotary printing machine, and are carried into the edge detection device 20 by a carrying belt 10. The signature prints that are overlapped and carried in are conveyed to the edge detection device 20 by the conveyor belt 22. At this time,
The center portion of the folded printed matter on both sides is gradually lifted upward by the folding belt 32, and both side edges of the folded printed material are transported while maintaining the height when they are loaded. The printed matter is conveyed while the central portions in both sides are raised in a mountain shape.

The front end edges of the center portion of the folded printed matter on both sides are sent out to the folding roller 30 and the pressing roller 40, and are conveyed obliquely upward.
5 and the driven roller 54 and the belt 50 for bending which is running diagonally downward. Thereby,
The front end edges of the center portion of the folded printed matter in both sides are guided obliquely downward and deformed from a substantially straight state to a state bent downward. The front end edges of the central portions in the lateral direction of the folded printed matter conveyed while being shifted and overlapped pass one after another while being deformed from a substantially straight state to a downwardly bent state. At this time, the photoelectric sensor 60 irradiates the front edge of the central portion of the folded printed matter, which is bent downward from a substantially straight state. The change of the reflected light by the photoelectric sensor 60 is converted into the change of the voltage. That is, in a substantially straight state, the voltage is high and the voltage becomes lower as it bends downward.
The change in voltage is compared by a comparator (not shown), and a pulse is emitted when the voltage exceeds a certain voltage.
That is, when the front edge of the central portion of the folded printed matter comes into contact with the bending belt 50 in a substantially straight state, a pulse is emitted and the passage of the front edge of the central portion of the folded printed material is detected.
The time from when the pulse is received until the front edge of the signature print reaches the downstream sampling position is the conveyance belt 2
2 is calculated by the transport speed, and the transport speed is calculated by the drive roller 2
It is calculated by the rotational speed of 3.

When the pulse is received, the cylinder member 73 is actuated to retract the output rod 74 in the horizontal direction, and the rack member 72 rotates the pinion 71 counterclockwise in FIG. As a result, the arm member 70 swings downward from the standby position to start preparation for extraction. At this time, the hand member 76 is in the approach avoidance position. The hand member 76 tilts from the approach avoiding position to the approachable position based on the time it takes for the front end edges of the two-sided printed matter to be detected in the bidirectional direction to reach the extracting position. As a result, the grip claws 77 are surely positioned between the front edge of the signature print to be extracted and the front edge of the signature print immediately before that.
The front edge of the central portion in the lateral direction of the signature printed matter previously detected comes into the gap between the pair of gripping claws 77, 77. When the front end edges of the center portion of the signature printed matter in the lateral direction enter the gap between the pair of gripping claws 77, the pair of gripping claws 77 are closed and the front edge of the signature printed matter is gripped. Next, the cylinder member 73 is actuated, the output rod 74 projects in the horizontal direction, and the rack member 72 rotates the pinion 71 in the clockwise direction in FIG. As a result, the arm member 70 swings from the lower position to the standby position. When you start extracting
The grip claws 77 are not displaced in the conveyance direction of the signature printed matter, and do not disturb the flow of the signature printed matter conveyed in an overlapping manner.

When the arm member 70 swings to the standby position,
The pair of grip claws 77 are opened, and the extracted signature print product is leaned against the leaning member 82. When the printed matter is leaned against the member 82 for standing up, the cylinder member 85 for rocking operates, the guide member 84 rocks from the non-guide position to the guide position, and the member 82 for standing up is kept constant. The guide positions face each other with a gap of. Next, a cylinder member (not shown) is actuated, and the folded signature print is moved upward. Above the standing-up member 82, a conveyance device conveyance device 90 for conveying the folded printed matter that has moved upward to a predetermined position is on standby.

The gripper member 94 of the transport device 90 is usually above the member 82 for leaning, and the insertion opening can be opened against the biasing force to insert the signature print. When is inserted, the insertion opening is closed by the urging force to hold the signature print. When the signature print is gripped by the gripper member 94, the transport cable 91 is driven, and the signature print reaches the predetermined location along the transport path via the direction changing pulley 93 and the gripper member 94. Be transferred.
At a predetermined place, the insertion opening of the gripper member 94 is opened, the signature print is removed, and the print is inspected. In the above-mentioned embodiment, the one in which the front edge of the folded printed matter is detected to change from the substantially straight state to the bent state is shown. For example, as shown in FIG. The reflective photoelectric sensor 60 may detect the change from the bent state to the substantially straight state.

[0021]

According to the method for detecting the edge of a folded printed matter according to the present invention, the edge of the folded printed matter that is carried out from the rotary printing machine in an overlapped manner is detected, and the edge of the folded printed matter is detected. The time it takes to reach the downstream sampling position,
Based on the calculated time, the extraction member was displaced from the standby position to the downstream extraction position so that the detected target printed form of the booklet could be caught with certainty. Since it does not disturb the flow of the folded copy printed matter that is carried out in an overlapped manner, it is possible to quickly and reliably remove a predetermined number of the folded copy printed matter without manual work.

[Brief description of drawings]

FIG. 1 is a front view of an edge detection device for a signature print according to an embodiment of the present invention.

FIG. 2 is a partially enlarged front view of the edge detection device for a signature print according to the embodiment of the present invention.

FIG. 3 is a side view of an edge detection device for a signature print according to an embodiment of the present invention.

FIG. 4 is a partially enlarged front view of an edge detection device for a printed matter of a signature showing a modified example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Belt for carrying in 20 ... Edge detection device 22 ... Conveying belt 30 ... Roller for bending 32 ... Belt for bending 40 ... Holding roller 50 ... Belt for bending 60 ... Photoelectric sensor 70a ... Member for extracting 70 ... Arm member 77 ... Grasping claw 82 ... Standing member 90 ... Conveying device

Claims (1)

[Claims] 1. A method of extracting a copy of a signature copy, wherein one or more copies of the signature print are taken out at a sampling position downstream of a conveyance path where the signature prints are discharged from the rotary printing machine in an overlapped manner. The edge of the folded printed matter is detected, and the time taken for the folded printed matter that detected the edge to reach the sampling position is calculated based on the speed at which the folded printed material is conveyed. Based on the above, the method for extracting a folded printed material is characterized in that the extraction member is displaced from the standby position to the extraction position and then extracted along the conveyance direction.