JP2694735B2 - Defective binding Saddle book detection and ejection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is to detect and reject a saddle stitching binding failure (for example, no binding wire, one-sided binding, binding position error, etc.) in a saddle stitching machine. Accordingly, the present invention relates to a device for detecting and ejecting a saddle-stitch book with a poor binding, which can prevent the non-defective product from being mixed.

[Conventional technology]

Conventionally, in the collating section, a plurality of signatures are collated into a collated book, the collated book is sent to the saddle stitching section, and in the saddle stitching section, the collated book is bound with a binding wire to form a saddle stitch book, After that, a saddle-stitching machine configured to discharge to a subsequent process is known. This saddle stitching machine is usually provided with a collated book thickness detecting device for detecting an abnormality in the thickness of the collated book between the collating section and the saddle stitch section, and a defective saddle stitch is provided downstream of the saddle stitching section. A reject device for ejecting books is provided. For a collated book that is detected as defective by the collated book thickness detection device, the reject device is activated when the collated book reaches the reject device, and The collated book was discharged from the regular route to prevent it from being mixed with non-defective products.

[Problems to be solved by the invention]

However, such a saddle stitching machine can detect and eject saddle stitch books with defective thickness such as multiple pages and missing pages, but the saddle stitch book is a predetermined number of binding wires and is bound at a predetermined position. It is not possible to detect whether or not it is present, and therefore, a non-defective saddle book that is not bound by wire, a saddle book that lacks binding wire, or a saddle book that has been stapled sideways etc. There was a problem that was mixed.

The present invention has been made in view of the above problems, and it is possible to detect and discharge a defective binding saddle stitch in which a defective binding saddle stitch in which a predetermined position is not bound by a predetermined number of binding wires is detected and discharged. The purpose is to provide a device.

[Means for solving the problem]

The present invention, which has been made to achieve the above object, provides a transport device for transporting a saddle stitch book along a predetermined transport path, and a reject provided in the middle of the transport path for discharging the saddle stitch book outside the transport path. A device, a saddle stitch book detection sensor that is provided at a predetermined position on the upstream side of the reject device in the transport path, and detects the presence or absence of a saddle stitch book, and is arranged in the vicinity of the saddle stitch book detection sensor. A metal detection sensor for detecting passage of a wire binding a binding book, a binding failure detection circuit for detecting a binding failure saddle binding book based on signals from the saddle binding book detection sensor and the metal detection sensor, and the binding failure detection circuit A control device for operating the reject device in response to a defective signal from the control device, the control device rotating according to the transport speed of the saddle stitch book by the transport device, and the button rod wheel thereof. And so on And a plurality of button rods held movably between a normal position and an abnormal position, and a metal detection sensor at a position along a circumferential path along which the button rods travel and in the saddle stitch book conveying path. And a rod drive means for moving the button rod to an abnormal position in response to a binding failure detection signal from the binding failure detection circuit, and a circumferential path along which the button rod travels. And a signal output means for outputting a signal for activating the reject device, which is arranged at a position corresponding to the position of the reject device in the conveyance path of the saddle stitch book and is operated by the button rod in the abnormal position. The gist of the invention is a device for detecting and ejecting a saddle-stitch book that is not bound properly.

[Action]

In the apparatus having the above configuration, the saddle stitch book after being bound by the binding wire passes through the positions of the saddle stitch book detection sensor and the metal detection sensor. A signal indicating that a book is bound is output, while the metal detection sensor outputs a wire detection signal each time the wire passes. The stitching failure detection circuit inputs these signals, counts the number of wire detection signals while the signal indicating the presence of the saddle stitch book from the saddle stitch book detection sensor is continued, and the count value is set to a preset value ( The number of binding wires used for one saddle-stitched book) is compared, and if different, the number of wires bound at a predetermined position is determined to be defective, and a binding failure signal is output. Upon receipt of this binding failure signal, the control device activates the reject device when the saddle stitch book reaches the reject device and discharges it out of the transport path. That is, the button rod wheel provided in the control device is rotating in correspondence with the transport speed of the saddle stitch book by the transport device, and when the binding failure detection signal from the binding failure detection circuit is received, the rod driving means is activated. ， Move the button rod reaching that position to the abnormal position, then
When the button rod that has moved to the abnormal position reaches the position corresponding to the reject device, the signal output means provided at that position is operated to output a signal, whereby the reject device is operated and the reject device is operated at that time. Saddle book that reached the device (the one that was judged to be defective first)
Is discharged outside the transport path. In this way, a saddle-stitch book with defective binding can be detected and separated from non-defective products.

〔Example〕

 Hereinafter, embodiments of the present invention shown in the drawings will be described.

FIG. 1 is a side view schematically showing a saddle stitching machine equipped with a defective wire saddle stitch book detecting and discharging device according to an embodiment of the present invention.
Is a gathering chain for gathering signatures, 2A is a gathering book, 2B is a saddle stitch book made by binding the gathering book with binding wire, 3
Is a guide plate that constitutes a conveying path for further conveying the collated book conveyed by the gathering chain 1 to the further downstream, 4 is a stitcher head for driving a binding wire into the collated book, and 5 is driven into the collated book The binding wire 6, is a rejecting device provided in the middle of the transport path. The reject device 6 is
As shown in Fig. 2, it has a reject claw 6A that can be swung at the two-dot chain line position and its drive mechanism 6B (see Fig. 1), and it is in a state where the reject claw 6A is moved to the two-dot chain line position. By sending the saddle-stitch book 2B, the saddle-stitch book 2B can be discharged to the outside of the transport path. Although illustration is omitted,
A transport device is provided for intermittently transporting the collated book 2A or the saddle stitch book 2B on the guide plate 3 by one pitch in a direction indicated by an arrow. Since these configurations are conventionally known, detailed description thereof will be omitted.

On the conveyance path of the gathering book 2A by the gathering chain 1, an abnormality in the thickness of the gathering book 2A is detected to increase the number of the gathering book 2A.
A collated book thickness detecting device 8 for detecting a missing page is provided. As the collated book thickness detecting device 8, a conventionally known device can be used. The signal from the collated book thickness detection device 8 is sent to the control device 9 and, as will be described later, the stitcher head 4
And used to control the reject device 6.

Upstream of the reject device 6 and the stitcher head 4
A saddle stitch book detection sensor 11 for detecting the presence or absence of the saddle stitch book 2B, and a passage of a wire 5 which is arranged in the vicinity of the saddle stitch book detection sensor 11 and bound at a predetermined position of the saddle stitch book The metal detection sensor 12 and the pressing roller 13 arranged before and after the metal detection sensor 12 are provided. FIG. 3 shows in detail the mounting portions of the saddle stitch book detection sensor 11, the metal detection sensor 12, and the like.
A slide member 15 is horizontally movably held by a frame 14 provided in parallel with. A bracket 16 is fixed to the slide member 15, a saddle stitch book detection sensor 11 is held at the lower end of the bracket 16, and a holder 17 having an adjustable vertical position is attached to the slide member 15.
A metal detection sensor 12 is held inside 17. Here, as the saddle stitch book detection sensor 11, a transmissive or reflective optical sensor, a limit switch, or the like can be used, but it is preferable to use an optical sensor that can detect the saddle stitch book in a non-contact manner. . Further, when using the optical sensor, not only when mounting the sensor main body that performs photoelectric conversion on the bracket 16,
It is also possible to attach only the detection end and guide the light from the detection end to the sensor main body provided at another position by an optical fiber. As the metal detection sensor 12, for example, a proximity switch that reacts with metal can be used.

In FIG. 1, the saddle-stitch book detection sensor 11 and the metal detection sensor 12 are connected to an operation panel 19, and the operation panel 19 indicates a binding failure based on signals from the saddle-stitch book detection sensor and the metal detection sensor. A binding failure detection circuit that detects a saddle stitch book is built in. This binding failure detection circuit is provided by the saddle stitch book detection sensor 11
Metal detection sensor while the signal indicating that there is a saddle stitch book from
Count the number of wire detection signals sent from 12,
The count value is compared with a preset value (the number of binding wires used for one saddle stitch book), and if different, it is determined that the binding is defective and a binding failure signal is output. It is configured. Thus, the stitching failure detection circuit counts the number of wires used at the correct position of the saddle stitch book (the position of the spine of the book) while one saddle stitch book 2B is passing, and the binding stitch detection circuit for the predetermined number of stitches is performed. It can be determined whether the wire is being used correctly. The operation panel 19 also includes an input key 19A for inputting a set value, a display 19B for displaying the input value, the count value of the wire detection signal, and the like.

The control device 9 receives the signals from the collated book thickness detection device 8 and the binding failure detection circuit in the operation panel 19, and controls the stitcher head 4 and the reject device 6, and FIG. The button rod wheel 21 shown in FIG. 6 is provided. This button rod wheel 21 includes a plurality of (10 in the embodiment) button rods 22 at an equal pitch.
It is held so that it can move up and down between the normal position (the raised position in this embodiment) and the abnormal position (the lowered position in this embodiment), and it also supports the movement of the collation book 2A and saddle stitch book 2B shown in FIG. Then, it is configured to rotate in the direction of the arrow. For convenience of explanation,
The button rod 22 is rotated by rotating the button rod wheel 21.
10 along the circumferential path along which the
The equally divided positions are indicated by P1 to P10. Around the button rod wheel 21, at a position P1, a first solenoid 23 for pushing the button rod 22 at the normal position to an abnormal position in accordance with a thickness defect detection signal from the collated book thickness detecting device 8 is provided.
The upper limit switch 24A and the lower limit switch 24B that output a signal for controlling the stitcher head 4 are at position P3, the position limit switch 25A is at position P4, and the timing adjustment proximity switch 25 is at position P5. In response to the binding failure detection signal from the failure detection circuit, the rod driving means for pushing the button rod 22 in the normal position to the abnormal position, that is, the second solenoid 26 outputs the signal for controlling the reject device 6 to the position P6. Upper limit switch 27A
The lower limit switch 27B is provided with a cam (not shown) or the like for returning the button rod 21 to the normal position at an appropriate position between positions P7 and P10. Where the upper limit switch
The 24A, the proximity switch 25, and the upper limit switch 27A are set to a position where the upper end of the button rod 22 in the raised position (normal position) can be detected (in other words, a position where the button rod 22 can be operated to output a signal). On the other hand, the lower limit switches 24B and 27B are located at positions where the lower end of the button rod 22 (see FIG. 6) in the lowered position (abnormal position) can be detected (in other words, the button rod 22 is operated). Position where a signal can be output). The output signal of each switch is used to perform the following operations.

 Next, the operation of the device having the above configuration will be described.

In FIG. 1, while the gathering chain 1 is running, the signatures are successively supplied onto the gathering chain 1 for collation. The gathered collated book 2A is sent from the gathering chain 1 onto the guide plate 3 and intermittently sent over the guide plate 3, and the stitching wire 5 is struck by the stitcher head 4, and the saddle stitch is bound. The book 2B is sent to the next step.

During the above-described collation and saddle stitching operation, while the collation book 2A passes through the position of the collation book thickness detection device 8, the collation book thickness detection device 8 has an abnormality in the thickness of the collation book (for example, an extra copy, Missing pages etc.)
Is detected. Now, when the collated book having the abnormal thickness passes through the collated book thickness position detecting device 8, the detecting device 8 detects the abnormal thickness and sends a thickness abnormal detection signal to the control device 9. In the control device 9, the button rod wheel 21 shown in FIG.
The button rod 22 is rotated according to the moving speed of the saddle stitch book, and during the rotation, the button rod 22 is returned to the raised position by the cam (not shown) provided between the positions P7 to P10 and is moved to the position P1. All incoming button rods 22 are in the raised position. In response to the thickness abnormality detection signal from the detection device 8, the first solenoid 23 located at the position P1 is operated to push the button rod 22 downward to the lowered position. Collage book 2A with abnormal thickness is stitcher head 4
When the button rod 22 pushed down by the first solenoid 23 reaches the position P3 by the rotation of the button rod wheel 21, the lower limit switch 24B at that position moves the button rod 22 to the lower position. Operated by. When the lower limit switch 24B is actuated, its output signal causes the stitcher head 4 to stop operating.
As a result, the stitcher head 4 does not operate and the binding wire is not driven for the collated book 2A having an abnormal thickness. When the collated book with a normal thickness passes through the collated book thickness detecting device 8, the first solenoid 23 does not operate, so the button rod 22 is kept in the raised position and the button rod 22 is Upper limit switch 24 when position P3 is reached
A operates, and in this case, the stitcher head 4 operates to drive the binding wire into the collated book.

The collated book having an abnormal thickness in which the stitching wire 4 is not driven by the stitcher head 4 is then sent downstream on the guide plate 3 and reaches the reject device 6. At this time, the button rod 22 previously pushed down by the first solenoid 23 is in the position P6.
And the lower limit switch 27B is actuated, and the signal of the lower limit switch 27B actuates the drive mechanism 6B of the reject device 6 to rotate the reject claw 6A to the two-dot chain line position in FIG. As a result, the defective collated book is ejected. When a normal collated book (saddle stitch book) passes, the button rod 22 is in the raised position, the upper limit switch 27A is activated, and the reject claw 6A is returned to the position shown by the solid line in FIG. The saddle stitch book will be sent to the subsequent process.

Next, the saddle stitch book 2B having no abnormality in thickness and having the binding wire 5 driven therein by the stitcher head 4 then passes through the positions of the saddle stitch book detection sensor 11 and the metal detection sensor 12. While the saddle stitch book 2B passes through the positions of these sensors 11 and 12, the saddle stitch book detection sensor 11 continues to output a signal indicating the presence of the saddle stitch book, while the metal detection sensor 12 causes the wire 5 to pass each time. , Output the detection signal. The binding failure detection circuit built in the operation panel 19 sends a signal from the metal detection sensor 12 while the signal indicating the presence of the saddle stitch book from the saddle stitch book detection sensor 11 is continuing (hence, when one saddle stitch book is passing). The number of wire detection signals received is counted, and the count value is compared with a preset value (the number of binding wires used for one saddle stitch book).
When a predetermined number of binding wires 5 are not used (for example,
The binding failure detection circuit outputs a binding failure signal in the case of no binding, one-sided binding, defective binding position, etc.
The second solenoid 26 of P5 is activated and the button rod 22 is pushed down. It should be noted that the proximity switch 25 provided at the position P4
Are provided for detecting the button rod 22 in the raised position and adjusting the operation timing of the second solenoid 26. If the button rod 22 is already pushed down due to the thickness error of the collated book as described above, the proximity switch 25 does not output the detection signal of the button rod, so the second solenoid 26 does not operate.

Even when the button rod 22 is pushed down by the operation of the second solenoid 26, the button rod 22 reaches the position P6 and operates the lower limit switch 27B to move the reject claw 6A of the reject device 6 to the discharge position, The corresponding saddle stitch booklet 2A is discharged to the outside of the transport path. In this way,
Not only the thickness defect but also the saddle stitch saddle stitch book such as defective wire count is discharged by the rejecting device 6 to the outside of the transport path, and only non-defective products are sent to the subsequent process.

〔The invention's effect〕

As described above, according to the defective binding saddle-stitch book detecting and discharging device of the present invention, it is possible to detect whether or not there is a predetermined number of binding wires at a predetermined position of the saddle-stitch book after saddle stitching. In addition, in the case of defective binding, the saddle stitch book can be discharged to the outside of the system, and it is possible to prevent the defective saddle stitch book from being mixed into non-defective products. . Also,
As a control device for ejecting a saddle stitch book, which is determined to have a binding failure upstream of the saddle stitch book transport path, by a reject device disposed at a downstream position, the saddle stitch book corresponding to the saddle stitch book transport speed. Equipped with a rotating button rod wheel and a button rod held by the button rod wheel, the button rod was moved to an abnormal position by a binding failure detection signal, and then the button rod reached the position corresponding to the reject device. At the same time, by using a structure in which the signal output means provided at that position is actuated to operate the reject device, the button rod wheel is used to prevent the tanning that the saddle stitch book judged to be defective reaches the reject device. It can be picked up mechanically by rotating the booklet, so that when a saddle stitch book judged to be defective arrives at the reject device, It actuates the object device can discharge its Chutsuzuri book also has the effect of being able to discharge only a very accurate defect Chutsuzuri present.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a saddle stitching machine provided with a defective binding saddle stitch book detecting and discharging device according to an embodiment of the present invention, and FIG. 2 is a rejecting device 6 provided in the device of FIG. FIG. 3 is a schematic plan view of the saddle stitch book detection sensor 11 provided in the above device.
FIG. 4 is a schematic perspective view showing a mounting portion of the metal detection sensor 12 and the like, and FIG. 4 is a button rod wheel 21 provided in the control device 9.
And a plan view schematically showing components arranged in the vicinity thereof,
5 and 6 are cross-sectional views taken along arrows VV and VI-VI in FIG. 4, respectively. 1 …… Gathering chain, 2A …… Collecting book, 2B …… Saddle stitch book, 3 …… Guide plate, 4 …… Stitcher head, 5 …… Binding wire, 6 …… Rejecting device, 6A …… Rejecting claw , 6B ……
Drive mechanism, 8 …… Collective book thickness detection device, 9 …… Control device, 11
...... Saddle stitch detection sensor, 12 …… Metal detection sensor, 13 …… Presser roller, 19 …… Control panel.

Claims (1)

(57) [Claims] 1. A transport device for transporting a saddle stitch book along a predetermined transport route, a rejecting device provided in the middle of the transport route for discharging the saddle stitch book out of the transport route, and in the transport route. , A saddle stitch book detection sensor which is provided at a predetermined position on the upstream side of the reject device and detects the presence or absence of a saddle stitch book, and a wire which is arranged in the vicinity of the saddle stitch book detection sensor and bound the saddle stitch book A metal detection sensor for detecting a saddle-stitch book, a binding failure detection circuit for detecting a saddle-stitch book binding failure from signals of the saddle-stitch book detection sensor and the metal detection sensor, and a failure signal from the stapling failure detection circuit A control device for operating the reject device, the control device rotating the button rod wheel corresponding to the transport speed of the saddle stitch book by the transport device, and the button rod wheel at regular pitches and at normal positions. Anomaly A plurality of button rods that are movably held by the table, and a position that is along the circumferential path along which the button rods travel and that corresponds to the position of the metal detection sensor in the saddle stitch book transfer path. And a rod driving means for moving the button rod to an abnormal position in response to a binding failure detection signal from the binding failure detection circuit, and a position along the circumferential path along which the button rod travels and the saddle stitch booklet. Of defectively bound saddle stitch booklet, which is arranged at a position corresponding to the position of the reject device in the conveyance path of the above, is operated by a button rod in an abnormal position, and has a signal output means for outputting a signal for operating the reject device. apparatus.