JPH0760276B2 - Binding system - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding system for binding copies ejected from a copying machine with stacked staples.

Prior art When a set of multiple originals is copied by a copier,
Conventionally, a stapler (commercial stapler) is generally used to manually bind one corner or one or two corners on one side.

Recently, a recycle type automatic document feeder (RADF) is being used as part of office automation.
In this case, one set of originals is automatically fed onto the contact glass of the copying machine, one exposure is performed for each feeding, and the originals are circulated a required number of times to feed the originals. A required number of copies are continuously ejected from the copying machine. Therefore, if a simple bookbinding machine that can automatically bind one set of consecutively ejected copies with a stapler is connected to the copy outlet of the copier, it will take time for bookbinding work. Instead, the bookbinding work is speeded up, which is convenient.

As a bookbinding apparatus for this purpose, for example, Japanese Patent Laid-Open No.
-180893, Receiving means for receiving and transporting copies discharged from a copying machine to the front, intermediate stack means for stacking and stacking the copies received from the copying machine through the receiving means in the order received, and the intermediate stack A bookbinding apparatus is disclosed which has a finishing unit for binding and finishing the copy group stacked on the unit with staples, and a unit for ejecting and stacking the copy group finished by the finishing unit to the outside of the machine.

In a device such as a copying machine, a moving member, such as a guide fence, a lens, or a conveyor belt, is usually provided with a reference position (home position) detection sensor. , If the reference position detection sensor is not on, rotate the drive motor for that member until the sensor turns on and return that member to the reference position,
Generally, the movement is started from the reference position, and if the sensor is turned on when the power is turned on, the movement is generally stopped at that position.

In the bookbinding apparatus having the above-mentioned configuration, when a conveyor belt is used as a device for ejecting the stapled copy group to the outside of the machine, the power is turned off for some reason while the copies are being stacked on the intermediate stacking means or immediately after the stacking. Then, the transport belt is kept in the reference position and the copy group remains in the intermediate stacking means. Therefore, when the power switch is turned on next time, the transport belt does not move and the copy group discharged from the copying machine is stacked on the remaining copy group, and another type of copy group is put together. If the sheets are stapled or the size of the copy is different, the guide fence causes a jam.

In view of the above-mentioned problems of the conventional bookbinding apparatus having the above-described configuration, the present invention, even when there is a copy left to be stacked in the machine at power-on, the next ejected copy is jammed. It is an object of the present invention to provide a bookbinding system in which a bookbinding error such as a bookbinding with remaining copies is prevented.

In order to achieve the above-mentioned object, the present invention provides an intermediate stacking means for sequentially stacking and stacking conveyed sheets and a finishing means for stapling a bundle of sheets stacked on the intermediate stacking means for finishing. A discharging belt for discharging the sheet bundle finished by the finishing means from the intermediate stacking means to the stacking means, and a home position of the discharging hook. In the bookbinding system, the bookbinding system includes: a detection unit that operates the discharge belt and a discharge driving unit that drives the discharge belt until the detection unit detects the home position of the discharge claw after the sheet stack of the intermediate stacking unit is finished by the finishing unit. Every time the bookbinding system is powered on, the ejection drive means is driven regardless of the detection signal from the detection means. Allowed by detecting means provided control means for controlling to stop the discharge driving means after detection of the next ejection claw home position.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an overall schematic configuration of an example of a bookbinding apparatus to which the present invention is applied. The bookbinding device 2 is installed adjacent to the copying machine 1, and the copy discharged from the copy discharge port of the copying machine 1 is guided into the bookbinding device 2 by the entrance rollers 3 and 4. The copy that has entered the bookbinding apparatus 2 is the transport rollers 6,7;
It is sent to the position of punching punch 10 by 8, 9 and the guide plate of each part. If you want to punch a copy, insert the stopper 12 into the transport path and hit the copy tip against it to stop it.
Punch 10 to make a hole. After the completion of the punching operation, the stopper 12 is retracted to the position indicated by the broken line and released, and the transport rollers 13 and 14 transport the copy. When ejecting a copy without stapling, set the branch claw 19 to the position shown by the broken line,
The paper is discharged to the paper discharge tray 18 outside the machine by the discharge rollers 15 and 16.

When stapling the copy group, the branch claw 19 is set to the position shown by the solid line, and the copy claw 19 is sent to the stack portion via the transport rollers 20, 21; 23, 24 along the guide. The stack portion is provided with a feed roller 25 that is displaceable between the position shown by the solid line and the position shown by the broken line in the figure, and feeds the copy to the staple position.
The copy group to be stapled is provided by the guide fence 34, and when the copy group is gathered, the copy group is stapled by the stapler 35. After stapling, the discharge belt 32 rotates in the direction indicated by the arrow in the figure, and the discharge claw 33 catches the copy group and discharges the copy group to the discharge tray 31. The discharge belt 32 continues to rotate even after the copy group is discharged, and the discharge claw 33 causes the home position sensor 26 to
Rotation stops when is turned on. The feed roller 25 is lifted by a solenoid (not shown) in synchronism with the discharge belt 32 so as not to disturb the discharge of the copy group.

Reference numerals 5, 11, 22, and 27 in the figure denote sensors for detecting the passage of copies, respectively, and a counter for counting the number of copies having passed through each sensor is provided.

FIG. 2 is a timing chart of the operation of each of the above components. The first half portion indicated by A in the drawing is the operation of the parts such as the sensors for each copy until the copy reaches the stack portion, and after repeating this several times, the staple operation and ejection in the latter half portion indicated by B are performed. The operation is performed, and the bookbinding work is completed.

With this bookbinding device, regardless of the size of the copy group discharged from the copying machine and the discharge standard, the discharged copy group is not moved laterally, but at one place at the corner or at two places at the center. Two staplers are provided so as to be movable in the lateral direction so that the stapler and the guide fence can be moved from a reference position, which is positioned by the home position sensor, to a required position by a step motor.

FIG. 3 is a block diagram of a control circuit of the bookbinding device having the above configuration. The control is performed by a CPU (microcomputer) 40, and data is serially transferred to the CPU 41 for controlling the copying machine main body 1. By this serial I / O, each data, such as copy size data, is sent. The CPU 40 receives the signals from the copy detection signals of the paper sensors 5, 11, 17, 22, and 27, the home position sensor 26 of the copy discharge belt 32, the home position sensor of the stapler 35, and the home position sensor of the guide fence. This information is processed by the CPU 40, and the solenoids for controlling the positions of the punching punch 10, the stapper 12, the branch claws 19 and the feed rollers 25, the main motor of the bookbinding apparatus, the ejection motor, and the stapler are processed through the driver 42. Also, a stepping motor for displacing the guide fence is driven. CPU 40 and driver 42 are one control P
It is mounted on the CB43.

Further, in the bookbinding device of the present invention, the drive motor for the discharge belt 32 is controlled by the CPU 40 as follows. The operation will be described below with reference to the flowchart shown in FIG.

When the power is turned on, it is checked whether the discharge belt home position sensor 26 is on. If the sensor is not on, the discharge motor is rotated and the motor on flag is set. After that, when the discharge claw 33 attached to the discharge belt 32 turns on the discharge belt home position sensor 26, the motor stops.

If the discharge belt home position sensor 26 is turned on when the power is turned on, then the motor on flag is checked. At this time, since the motor-on flag is off, the discharge motor starts rotating, and when the discharge claw 33 turns on the sensor 26, the motor stops.

By controlling as described above, regardless of whether the discharge belt home position sensor is turned on or off, the discharge motor is rotated until the next reference position is reached when the power is turned on. As a result, the copy group that was stapled last time and stopped on the discharge belt during discharging, and the copy group that is not stapled and is in the stack are also discharged outside the machine, and the criteria for accepting the next copy group are set. become.

Effect As described above, according to the present invention, the copy group left in the intermediate stack portion due to the power-off during the previous work is surely removed by the power-on for the next bookbinding, and the bookbinding mistake and the jam are prevented. be able to. Moreover, each time the bookbinding apparatus is powered on, the ejection drive means is driven and the ejection drive means is stopped after the detection means detects the next ejection home position, regardless of the detection signal of the detection means for the ejection claw. If the discharge belt is not driven due to an abnormality in the discharge system, the system as a whole will not be able to start work, and in the event of an abnormality, copies will be accumulated in the intermediate stack section. It is possible to prevent it in advance.

[Brief description of drawings]

1 is a side sectional view showing an overall schematic configuration of an example of a bookbinding apparatus to which the present invention is applied, FIG. 2 is a timing chart of the operation of each component thereof, FIG. 3 is a control block diagram of the apparatus of this example, FIG. 4 is an example of a control flowchart of the present invention. 1 Copier 3,4,6,7,8,9,13,14,20,21,23,24 …… Conveying roller (receiving means) 25 …… Feeding roller 26,31 …… Discharging stacking means 34 …… Guide fence (stacking means) 35 …… Stapling means 40 …… Control means

Claims (1)

[Claims] 1. An intermediate stacking means for stacking and stacking conveyed sheets in order, a finishing means for stapling a bundle of sheets stacked on the intermediate stacking means for finishing, and a discharge belt and a discharge belt. A discharging unit configured to discharge the bundle of sheets finished by the finishing unit from the intermediate stacking unit to the stacking unit, a detecting unit configured to detect a home position of the discharging claw, and the intermediate stack. A binding system that drives the discharge belt until the detecting means detects the home position of the discharge claw after the sheet bundle on the means has been finished by the finishing means, the power to the bookbinding system is turned on. Every time, regardless of the detection signal of the detection means, the discharge drive means is driven to detect the next Bookbinding system, characterized in that the discharge driving means is provided control means for controlling to stop after detecting the Detsume home position.