JPH02190396A - Paper handling device - Google Patents

Abstract

PURPOSE:To perform an accurate abnormality detection and prevent breakage of a device or the like from occurring by providing a controlling means for inhibiting the operation of a stapling means when one cycle of operation of an arranging means exceeds a predetermined period of time. CONSTITUTION:When the number of sheets of copies stacked on a bin exceeds a stapleable number of sheets, stapling of the discharged copies is inhibited. That is, the number of copies stacked on the bin is detected by counting (58-2) when the copies are discharged to the first bin (55-1). When it is judged that the counted number of the copies discharged to the first bin has exceeded the stapleable number of sheets (58-3), an oscillating operation is stopped (58-4), an oscillating unit is retracted to a home position (55-5), and arrangement is not conducted for the copies discharged thereafter. Simultaneously, stapling for the copies previously discharged is also inhibited (58-6). It is thereby possible to prevent breakage of the device even upon the occurrence of an abnormality in the device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filter paper processing device installed in a copying machine, a printing machine, etc., and particularly to a paper processing device characterized by abnormality detection control.

(Prior Art) This type of paper processing device has a function of aligning sheets discharged onto a plurality of pins and stapling them.

This device includes movable units such as an aligning device for preparing sheets, a stapling device for stapling the sheets, and a chuck device for gripping the aligned bundle of sheets.

[Problems to be Solved by the Invention] However, in conventional paper processing apparatuses, sufficient consideration has not been given to processing for detecting abnormalities in these units (particularly abnormalities in stop positions).

An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art and prevent damage to the device by performing accurate abnormality detection processing.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a plurality of pins, an aligning means for aligning sheets discharged onto the pins, a stapling means for stapling the sheets aligned by the aligning means, and a stapling means for each pin. In the paper processing apparatus, the paper processing apparatus includes a moving means for moving the stapler, and a stop position detecting means for detecting the stop position of each pin of the stapling means, and a stop position detecting means for detecting the stop position of each pin of the stapling means, and measuring the time when the stapling means is moved. The present invention is characterized by comprising a control means for prohibiting the operation of the stapling means when a predetermined time period has elapsed.

Further, in a paper processing apparatus having a plurality of pins, an aligning means for aligning sheets discharged onto the pins, and a stapling means for stapling the sheets aligned by the aligning means, one cycle of operation of the aligning means is The present invention is characterized by comprising a control means for prohibiting the operation of the stapling means when a predetermined time has elapsed.

The invention also includes a plurality of pins, an aligning means for aligning sheets discharged onto the pins, a stapling means for stapling the sheets aligned by the aligning means, a chuck section for chucking the aligned sheets, and a chuck section for chucking the aligned sheets. A paper processing apparatus having a moving means for moving the chuck to the stapling means, further comprising a control means for prohibiting the operation of the stapling means when the moving time of the chuck section exceeds a predetermined time. .

Further, in a paper processing device having a plurality of pins, an aligning means for aligning sheets discharged onto the pins, and a stapling means for stapling the sheets aligned by the aligning means, a standard for a series of operations of the stapling means is provided. The present invention is characterized by comprising a control means that detects the position where the stapling means becomes, measures the operation time thereof, and controls the operation of the stapling means to be prohibited when this time exceeds a predetermined time.

[Effect]

As described above, in the present invention, when the operating time of each unit exceeds a predetermined value, this is detected and the apparatus and units are controlled to stop operating.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

As shown in the front view of the present embodiment shown in FIG. Guide plate 107°109.110,111.1 for conveying the copies to the sorter means 100 of No.1. Conveyance rollers 106, 108, 112, 113 and a switching claw 115 are provided. The upper path through the operation of the switching claw 115 is provided with a pair of paper ejection rollers 117 and 118 and the paper ejection tray 119 from the guide plate 114, and the lower path to the second sorter means 101 through the operation of the switching claw 115 is as follows. , 1' provided upward from the guide plate 120 in parallel to the vertical direction.
It follows a vertical copy feeding path along the copy insertion side of the pin 300 for M number of sheets (20 sheets in the illustrated example).

A pair of deflecting claws 164, a conveyance roller 162, and a discharge roller 163 are provided at positions corresponding to each pin on the vertical feed path, and the plurality of conveyance rollers 162 provided at appropriate intervals include: - The driven roller 165 is in pressure contact across the copy vertical feeding path. Above conveyance roller 1
06,108°112.113, paper ejection roller 117.1
18, the conveyance roller 162, and the discharge roller 163 are driven by a drive motor 200.

As shown in the side view of this embodiment shown in FIG. 2, on the side of the group of pins 300, there is a stapler 401 which is a stapling means to be described later, a device (hereinafter referred to as a chucking unit) 402 for bringing the paper closer to the stapler, and the stapler 401. A stapler device (stapling means) 400 is arranged, which includes a vertical movement mechanism that moves the chucking section 402 to each pin.

Also, the pin 300 on the opposite side where the stapler device 400 is located
On the side of the group, there is a oscillator consisting of a pressing member 502 (described later) that serves as an alignment means for aligning the sheets before stapling, and a device that moves this pressing member 502 portion to a location that matches the size of the sheets. A moving device 500 is arranged.

FIG. 3 is a rear view seen from the opposite side of FIG. 1. Third
In the figure, things that could not be expressed in Figure 1 will be explained.

The sorter of this embodiment is a 20-pin sorter, and is divided into two blocks, a first sorter means 100 and a second sorter means 101 each having 10 pins, and the upper block (first sorter means) 100 to pin sensor 176.1
79 and paper discharge sensors 177 and 178, and sensors 181 and 184 are installed in the lower block (second sorter means) 101.
and paper discharge sensors 180 and 183. These sensors 1
Reference numerals 76 to 184 are transmission type optical detection sensors made of LEDs and phototransistors. The paper ejection sensor 177.17 detects whether the copy (=paper) has been ejected.
8, 180, 183, and the pin sensor 176, 179, 1 determines whether there is a copy on the pin 300.
It is 81,188. Such a pin sensor 176.1
79,181.188, it is possible to use the lower block 101 if there is a copy on the upper block 101.

Next, the operation of the above embodiment will be explained.

The copy ejected from the copying machine is placed on the entrance guide plate 104a.
, 104b, and the guide plate 107.109,1
10,111, transport 0-ra 106°108.112,1
13 to the upper part.

Now, assuming that the paper is in the normal paper ejection mode (a mode in which paper is ejected to the paper ejection tray 119), the switching claw 115 is lowered, and the copy is made along the guide plate 114, the paper ejection roller pair 117,
118 , the paper is discharged onto a paper discharge tray 119 .

Also, now, sort mode (sort mode in page order)
In the stack mode (sorting mode for each page), the switching claw 115 is raised and the paper is conveyed downward along the guide plate 120. *The copy conveyed by the feed roller 162 and the driven roller 165 is discharged onto the pin 300 at the location where the deflection claw 164 is activated.

The deflection claw 164 performs a movement that matches the mode (sort or stack).

In the sort mode, the deflection claw 164 of the 1st pin operates and ejects the second copy to the 1st pin 300, and the deflection claw 164 of the 2nd pin operates and ejects the second copy of the 1st page to the 2nd pin 300. pin 3
Eject to 00. Also, the first page of the second page is the first pin 3
00, and the second sheet is discharged to the second pin 300, respectively. In this way, when in sort mode, one pin 30
0 to 1°2.3. . . . The pages are ejected in order of page order.

When in stack mode, all copies of the first page are
The deflection pawl 164 operates to eject the copy of the second page onto the second pin. In this way,
In stack mode, copies of the same page are ejected to one pin and are sorted by page.

The configuration necessary for stapling copies sorted in this manner will be described below. To perform copy stapling, multiple copies must be aligned. Therefore, the sorter of this embodiment is equipped with a swinging device, which will be explained below with reference to FIGS. 4 to 8.

4 and 5 are a perspective view showing the outline of the swinging device and a plan view showing the relationship between the swinging device and the pin 300, respectively.

-[4a”H of each pin 300 has a pin fence 316
are respectively erected, and a pin rear end rising portion 308 is erected on the other side edge that is perpendicular to the edge on which the pin fence 316 is provided. Further, a notch 311 is provided on the edge opposite to the edge where the pin fence 316 is provided. This notch 311 is provided so as to extend over a predetermined length toward the fence 316. Each of these pins 3
A main shaft 501 having a rectangular cross section is erected so as to vertically penetrate through each notch 311 provided in the main shaft 501 . A plurality of pressing members 502 are attached to an intermediate portion of the main shaft 501 at positions corresponding to the respective pins 300 to abut against the end surface of the sheet bundle to align the sheet stack. As shown in FIG. 6, each of these pressing members 502 includes a pressing elastic member 502a facing the fence 316.
.

502b is provided.

Due to the elasticity of the pressing elastic member 502a, variations in the mounting of the pressing member 502 and the pin 300 are absorbed. Further, when the paper curls upward, the curl of the paper is suppressed by the pressing elastic member 502b, and the pressing member 502 reliably contacts the end face of the sheet bundle to align the position.

Further, pieces of brackets 505 and 506 formed in an L shape are attached to the upper and lower ends of the main shaft 501, respectively, and the notch is provided in the upper and lower regions of the pin 300. 31
A timing belt 5 extending in substantially the same direction as the timing belt 1.
07 and 508 are respectively arranged. and,
The other pieces of the brackets 505 and 506 are fixed to each of the timing belts 507 and 508, respectively. Each of the above timing belts 507 and 5
08 is hung respectively Boo 1J509, 5) 0
, and 5)1, 5)2.5)3, the drive side pulleys 509 and 5)0 are respectively attached to both ends of the drive shaft 5)4, which is provided to extend in the vertical direction. Fixed. The lower timing belt 508 is hung around a pulley 5) 3 provided on the output shaft of the size shifting motor 5) 5.

As shown in FIG. 4, the pressure member 50 is
2 position is detected.

A swing motor 520 is installed on the lower bracket 506, as shown in FIG. This swing motor 52
An eccentric shaft 520a is provided at the output section of 0 so as to protrude upward. On the other hand, a swing arm 521 is attached to the lower end of the main shaft 501 so as to protrude toward the swing motor 520 side. The eccentric shaft 520a is loosely fitted into a long groove 521a formed in the swing arm 521. Therefore, when the swing motor 520 is rotationally driven, the swing arm 521 swings, and the swing force is transmitted to the pressing member 502 corresponding to each pin 300 via the main shaft 501.
Each pressing elastic member 502a of this pressing member 502 has a fifth
As shown in Fig. 8, between the position indicated by the solid line in the figure and the position indicated by one point t*NIA, it is oscillated sinusoidally, so the oscillation speed becomes slower at the epithelial point. ing. Further, the position of the pressing elastic member 502a indicated by the dashed line is set so as to have a certain amount of biting from the sheet end surface in order to reliably press the sheet bundle against the fence 316.

As described above, the swinging device is unitized so that the entire swinging unit can be moved by the size movement motor 5).

When the swinging device receives the size signal sent from the image forming apparatus side, the upper and lower timing belts 507 and 508 are conveyed by the size movement motor 5) 5, thereby pushing the pressing member 502 attached to the main shaft 501. is moved forward toward one end surface of the paper bundle. Then, the size detection plate 530 and the size detection sensor 53
1 to move the swing unit to a predetermined position.

Next, the swing motor 520 rotates forward half a turn (180''), then reverses and returns to the home position, causing the swing arm 521 to swing once, and the swing force is transmitted through the main shaft 501. This is transmitted to each pressing member 502. As a result, the pressing elastic member 502a is swung from the position shown by the solid line in FIG. 5 to the position shown by the dashed line. By rotating the moving motor 520 forward by 180 degrees or more, and then reversing and returning to the home position, it is possible to easily swing twice in the l step.

Then, as the pressing elastic member 502a of the pressing member 502 comes into contact with one end surface of the sheet bundle due to the above-mentioned swinging, the opposite end surface of the sheet bundle is pressed against the fence 311.
As a result, one end face of the paper bundle is aligned, and the other end face, which is perpendicular to the one end face of the paper bundle, is aligned with the pin due to the swinging force of the pressing member 502. The sheet is pushed in the direction of arrow A so as to come into contact with the rising portion 308, and as a result, the other end surface of the sheet bundle is aligned.

Therefore, the sheet stack is well aligned in both directions. Since the swinging is performed by normal rotation and reverse rotation of the swing motor 520, even if the sheet cannot be pushed completely by normal rotation, it can easily return to the home position by reversing.

With the above operation, the sheets discharged onto the pins 300 can be aligned well to the edges.

The aligned sheet stack is taken out in the direction of arrow X in FIG. 5 after various post-processing operations such as stapling are performed. Since there is nothing in this direction that would impede the paper removal, the paper removal operation can be easily performed.

Further, the pins 300 have been devised in various ways to facilitate paper alignment and stapling.

Hereinafter, the structure of the pin 300 will be explained based on FIGS. 10 to 28. FIG. 10 shows a plan view of the pin 300, and FIG. 11 shows a side view. A notch 311 located approximately in the center of FIG. 1θ is for allowing the main axis of swing to move in accordance with the paper size.

Two convex portions 301 located next to the cutout portion 311
is the rocking plate 320 attached to the rocking main shaft 501.
(Fig. 15) is used to create a groove into which the hole (Fig. 15) is inserted. As shown in FIG. 15, by providing the convex portion 301, the paper P is lifted up and the paper P is reliably brought together during rocking.

A similar effect can be obtained by providing a concave portion 321 as shown in FIG. 17. Furthermore, by providing a convex portion 301 as shown in FIG. This also has the effect of allowing the paper P to be swung and aligned well.

The rib 302b of the pin 300 allows the ejected paper to fit into the notch 3.
We are taking into consideration not to sneak into 11.

FIG. 13 shows a cross-sectional view of the rib 302b near the notch 311. As can be seen in FIG. 13, the rib 302b is connected to pin 3.
The rib 30.2b, which protrudes above and below the 00 and prevents the paper P to be stacked from slipping below and at the same time from entering the notch of the upper pin, is also arranged within 19 mm from the end face of the paper size. It is set close to where the sheet enters the notch 311, and is designed to reliably guide the end surface of the paper that is particularly likely to enter the notch 311.

In addition, in FIG. 13, the shape of the rib on the upper side of the pin forms a gentle triangular shape on one side. This is because when the stack of chucked papers is stapled and then discharged, the discharged paper P is This is to guide the guide so that it does not get caught on ribs such as 302b. The rib 302b is a low rib near the pin rising portion 308, as shown in FIG. 14, for example, and gradually increases in height up to the notch. This is done to ensure a large number of sheets can be loaded.

In order to increase the number of copies that can be loaded, a static elimination brush 322 is attached to the pin 300 of this embodiment, as shown in FIG. There is a risk that alignment will be adversely affected. However, by providing the rib 302c, the ejected paper P can be reliably transferred to the static elimination brush 30.
The above-mentioned problem can be solved by guiding so that 11 does not apply to 2. The ribs 302c are also arranged to press both ends of each size of paper P.

In FIG. 11, the rib 302e protruding from the bottom is the first rib 302e.
As shown in Figure 8, it serves to hold down the end surface of the paper P, and when the chuck unit moves forward, the chuck lever 421 can reliably chuck curly paper without hitting the loaded paper P. .

Guide member 317 added to pin 300 in FIG.
is a member that guides the paper P loaded on the pin 300 to ensure that it enters the opening 323 of the stapler section when the paper P is moved to the stapler section by the chucking section. Without this guide member 317, as shown in FIG. 22, there is a risk that the paper P will be caught in the stapler opening 323 when moving from ■ to ■ in FIG. This problem occurs particularly when the paper P has a large curl as shown in FIG. 19 or when the number of stacked sheets increases.

However, by attaching the guide member 317, the paper P can be reliably guided to the stapler opening 323 as shown in FIG.

The convex portion 307 protruding from the bottom of the pin 300 in FIG. 11 is for suppressing the curl of the paper P. The sheets of paper P discharged onto the pin 300 are aligned in one direction, but sheets P with large curls are placed on the pin fence 316 provided on the side of the pin.
(Fig. 12), thereby impairing alignment. The convex portion 307 is installed to prevent the paper P from curling, etc., and to ensure good alignment. FIGS. 23 and 24 show model cases with and without the curl presser 307. The states of ■ and ■1■ on paper P in the figure are
It shows stepwise the state over time when the alignment was performed.

The notch 310 shown in FIG. 10 is a notch through which the chucking part chucks the sheets P aligned on the pins 300.

The pin 300 is attached to the sorter section at an angle. This is to align the ejecting direction of the ejected sheets P by the rotation and rocking of the rocking plate 320 and by the fall of the sheets P under their own weight. For example, in this embodiment, the slope is 25''.

In order to improve alignment accuracy in the ejection direction and stackability, the shape of the rising portion 308 of the pin 300 is as shown in FIG. 25. An arbitrary perpendicular part is provided to the bottom surface of the pin 300, and from its extension 90 degrees to the bottom surface of the pin 300.
It has a part with a more acute angle. This is so that when the sheets P are stacked on the rising portion 308, curls and the like are suppressed at the bent portion B, and the sheets are properly aligned and stacked. FIG. 26 shows a state in which sheets are stacked.

FIGS. 27 and 28 show a state in which the rising portion only extends vertically, and a state in which sheets P are stacked. With this shape, when curled paper is discharged, the curls cannot be suppressed and the paper/P rides on the rising portion, causing problems such as jams.

FIG. 12 is a right side view of the pin 300, showing the attached state. In the figure, 315a and 315b indicate side plates,
312a and 312b indicate pin receiver stands. The pin receiver on the pin fence 316 side fixes the pin 300 on the stand 312a, and the pin receiver on the other side only supports the pin 300 with a slight gap between it and the stand 312b. By fixing the pin fence 316 side, the position of the staple can be prevented from varying. Further, the pin receiver has a small gap provided on the side of the stand 312b so that thermal expansion of the pin 300 can be absorbed. Next, the stapler device 400 will be explained. A stapler device as shown in FIGS. 29 and 30 is arranged on the side of the paper stacking pins provided in multiple stages. This stapler device 400
In this case, a stapler 401 and a paper pulling device 402 are each fixed so as to be suspended from the lower surface of a plate-shaped bracket 403.

The stapler 401 drives staples into each of the later sorted paper bundles that are deposited on each pin (not shown), and the paper pulling device 402 grips the paper stacks on each of the pins. In other words, it is transported in a horizontal direction.

Both end edge portions 403a of the bracket 403.

403b is bent upward and downward, respectively, and rollers 404a and 404b are rotatably attached to both end edge portions 403a and 403b. The rollers 404a and 404b are connected to two guide rails 4 erected substantially parallel to each other along the sides of the pin.
The stapler 401 and the paper pulling device 402 are mounted in the grooves of the pins 05a and 405b so as to be moved in the vertical direction, so that the stapler 401 and the paper pulling device 402 are integrally reciprocated in the vertical direction along the sides of each pin. It looks like this. Furthermore, two drive belts 40 are arranged substantially parallel along the sides of the pin.
6a and 406b are erected. Both end portions 403a of the bracket 403 are connected to these drive belts 406a, 406b.

403b are each fixed with a screw. Each of the drive bells 406a and 406b is hooked between two pulleys 407a and 407c, and 407b and 407d, which are spaced apart from each other by a predetermined distance in the vertical direction. Lower pulley 407c.

407a are connected to each other by a common support shaft 408 so as to rotate together.

And the pulley 4 fixed to the output shaft of the drive motor 409
10 and a pulley 412 via a power transmission belt 411
The drive pulley 41 is fixed to one end of the support shaft 408 through a drive gear 413 fixed on the same axis, and a gear 414 meshed with the drive gear 413.
Rotational driving force is transmitted to 4.

With such a driving force transmission mechanism, the drive belt 4
06a and 406b are driven to convey, thereby vertically conveying the stapler 401 and paper pulling device 402.

Furthermore, a position sensor 415 is attached to one edge portion 403a of the bracket 403, and a detection plate 416 is erected between the position sensors 415. The detection plate 416
, projections 416a for indicating positions are formed at predetermined intervals to correspond to each pin position. Such a position detection mechanism controls the stapler 401 and paper pulling device 402 so that they are stopped at the position where each pin is installed.

The protrusion 403c and sensor 403d in FIG. 29 are for determining the upper limit position of the bracket 403,
When 403c enters sensor 403d, motor 409
stop rising at

FIG. 31 is an explanatory diagram to make the movement of the stapler device 400 described above easier to understand, and the movement of the paper 423c discharged onto the pin 300, the movement of the chuck section 421, and the position of the stapler 401 will be explained.

The paper 423c discharged onto the pin 300 is discharged to a position shown by 423d. Thereafter, it is aligned to a position where it abuts against the fence 424 using a swinging device described separately. After that, when copying is finished and stapling is started, the chuck part 421 moves from the position shown by the solid line to the position shown by the dashed-dotted line, closes the chuck part 421, pinches the edge 423c, and returns to the position shown by the solid line. Due to this operation, the paper 423c becomes 42
Move to position 3f and attach pin 300 to stapler 401.
A certain number of sheets are stapled on top. After that, the chuck part 421 is opened, and the paper 423C is 423
It is returned to the range from the position e to the position 423d. This completes the work on one pin 300, moves on to the next pin, and repeats this operation. The details of their operation will be explained later. As shown in FIG. 32, the paper pulling device 402 described above includes a chuck section 421 that grips a bundle of sheets, and a reciprocating mechanism 422 that reciprocates the chuck section 421 in a substantially horizontal direction. In the chuck section 421, a pair of swinging arms 421z are provided with respect to the substrate 421a.

421S is swingably attached, and when the swing arms 421z and 421s are operated by a solenoid 421c, the chucks 421y and 421m are operated to grip the paper.

The reciprocating mechanism 422 is provided with a feed shaft 422a that moves the chuck section 421 forward and backward toward the east side of the sheet.

Both support shafts protruding from both ends of the feed shaft 422a are rotatably supported by both pieces of a U-shaped frame 422b. One side of each support shaft of the feed shaft 422a penetrates a piece of the frame 422b and further protrudes by a predetermined amount, and the protruding portion has a 33rd
As shown in the figure, a pulley 422C is fixed, two round belts 422d are hung on the pulley, and a drive motor 4222 is connected to the drive motor 422C via a relay pulley and a gear 422e.
The structure is driven by f.

Further, a feed screw portion constituting a ball screw is engraved on the outer peripheral surface of the feed shaft 422a, and a boss portion 421h is fixed to the substrate 421a side with respect to the feed screw portion.
are screwed together. That is, the feed shaft 422a is rotationally driven by the output of the drive motor 422f, and the substrate 421a is reciprocated by this rotational force. In addition, two position sensors 422j and 422k are installed on the frame 422b at a front position and a rear position, respectively, separated by a predetermined distance, and the boss part 42
On the 1h side, a detection plate 422m as a detection target for both the position sensors 422j and 422 is erected, and the chuck part 421 is moved back and forth between the position sensors 422j and 422. It has become.

In the embodiment having such a configuration, when the stapling mode is started, first the drive belt 4 shown in FIG.
06a and 406b move the stapler 401 and paper pulling device 402 up and down integrally, and as shown in FIG. 300 and position sensor 415
It is stopped at a position close to a predetermined pin 300 based on a signal from. At this time, the solenoid 421C is turned off, so both swing arms 421z, 42
1s and chuck 421) r.

m is left open.

Next, the feed shaft 422 is driven by the output of the drive motor 422f.
a is rotationally driven, and the chuck portion 42 is rotated by this rotational force.
1 is moved forward toward the paper stack.

FIG. 45 shows the groove 4 carved on the outer peripheral surface of the feed shaft 422a.
It is a figure showing 30. The ball 4 that has entered this groove 430
31 is guided by the groove 430 by the rotation of the feed shaft 422a, and performs reciprocating motion.

Both ends of the feed shaft 422a are idling parts 432 of 180' or more.
is provided, and the groove end of the idling portion 432 serves as a stopper, eliminating variations in the stop position due to rotational inertia.

By using the round belt 422d for the drive transmission method described above, the impact when the belt 431 hits the groove end can be absorbed by slipping, and problems caused by the impact can be eliminated. In this embodiment, the explanation was given using the round belt 422d, but
The same can be said of other friction transmission methods such as flat belts.

Figure 5) is a developed view showing another embodiment of the groove shown in Figure 45. In the figure, speed control during movement is performed by changing the amount of advance relative to the rotation angle. In other words, in the case of this embodiment, the total amount of movement is 2 rotations (720"
), and if the movement fiA is 42mm, the movement IB when rotated 90" = 3mm
, movement i1c = 4 mm when the next 90° rotation is made, next 9
The amount of movement when it rotates 0'' D = 6mm, the amount of movement when it rotates the next 90''1': = 7mm, it gradually accelerates in the first rotation, and in the next rotation it accelerates at the rate of acceleration in the above one rotation. Figure 52 is a graphical representation of the above explanation. By performing the speed control as described above, the chuck unit 421 can collect the aligned paper bundle 423.
c is gripped by the chucks 421y and 421m to prevent variations in the sheet bundle 423c due to inertia at the start and stop of the return movement to the stapling position.

When the chucks 421y and 421m are moved to a position where they can grip the stack of sheets, they are stopped there, and at the same time, the solenoid 421c is turned on. solenoid 421
When c is turned on, chucks 4213F and 421m are set to the third position.
5, the chuck 4213' is closed as shown in FIG.
The edge portion of the paper bundle is gripped at 421m.

The movement at this time will be specifically explained based on FIGS. 32 to 38. The device moves from Figure 32.34 to the position shown in Figures 35-36. That is, when the solenoid 421c is turned on, the lever 4211 is rotated about the fulcrum 421d. The lever 4 is moved by the spring 421k hooked to the lever 4211.
21j rotates clockwise using 421W as a fulcrum. Further, a gear A421g is fixed to the lever 421j and meshes with a gear B421W, so that movement is transmitted.

The gear B421W is fixed to the upper lever 4212, and the upper lever 421z rotates counterclockwise using 421x as a fulcrum.
Chuck pivoted at 1t: Upper 421y moves downward.

Also, since the chuck part is protruding forward, the third
As shown in FIG. 6, the pin 421.V falls into the notch 422w of the return plate 422z.

In addition, since gear B421w meshes with gear C421p, gear C421p also rotates clockwise, and the lower lever 421s fixed to it also rotates clockwise around 421r as a fulcrum and is pivoted at 421n. Chuck: Lower 421
m moves upward, as shown in FIG. The spring 421f pulls the lower lever 421S counterclockwise, but it moves like this because it is weak.

The movement distance from the fixed position of chuck: upper 421y and chuck: lower 421m is gear A421g, 8421w, 421p.
It is determined by the number of teeth and the length of the rotation fulcrum and the point of action.

In this example, the number of teeth of gear A421g is 40° gear B4
Since the number of teeth of 21W is 32 and the number of teeth of gear C421p is 56, if the amount of movement of each gear is expressed as a ratio, A
:B:C=1:t, 2s:o.

It becomes 7. Also, the distance between the fulcrum 421X of the upper lever 421z and the point of action 421t is 52 mm, and the distance U between the fulcrum 421r of the lower lever 421s and the point of action 421n is 37 mm, so the movement ratio is 1°25X52;0. 7X
37, and moves at a ratio of 2.5:1. In other words, when the chuck double moves down by 2.5, the chuck: bottom moves up by 1.

Further, the chuck force applied by the double chuck lower 421)l and 421m is determined by the force of the spring 421 attached to the solenoid 3 door 421c.

As you can see in Figure 32, chuck: top, bottom 421y
, 421m increases, the spring 421 stretches. In other words, the chuck force is designed to increase as the number of sheets held by the chuck unit 421 increases, thereby eliminating problems such as displacement due to insufficient chuck force.

Next, by reversing the drive motor 422f, the chuck portion 421
is moved back to its original position as shown in FIG. 37 while gripping the paper stack, and thereby the paper stack is translated in a substantially horizontal direction and drawn toward the stapler 401. When the edge portion of the recording paper bundle is transported to a position where it can be stapled, it is stopped there.

FIGS. 34, 36, and 38 are views in which the return plate portion is visible.

At this time, since the return plate is caught by the notch 422W and the pin 421V, the return plate is moved to the position shown in FIG. 38 by the reverse rotation of the motor. The return plate 422z is the return plate bracket 4
The pin provided on the return plate 422z is inserted into the notch 422t of 22x, and the pin 422p provided with the return plate bracket 422x is inserted into the notch 422r provided on the return plate 4222.

Further, the return plate bracket 422x is fixed to the frame body 422b, and the return plate bracket 422x and the return plate 422z
is engaged by a spring 422n. Therefore, the return plate 422z changes from the state shown in FIG. 36 to FIG. 38 due to the reverse rotation of the drive motor 422f, and the return plate 422z itself is pulled leftward in FIG. 38 by a spring 422n. Thereafter, the stapler 401 drives staples onto the edge portions of the sheet bundle.

When the stapling operation is completed, the solenoid 421C is
FF. Chucks that were closed until now because of this: Top 4
21)1. Chuck: The bottom 421m will be open. The movement at this time returns from the state shown in FIG. 37 to the state shown in FIGS. 32 and 34 due to the force of the spring 421f.

In addition, since the pin 421v hooked on the return plate 422z is also removed, the return plate 422z is pulled by the spring 422y and returns from the state shown in FIG. 38 to FIG. do.

Fig. 43 shows the return plate 422z and the return plate bracket 422x.
and the relationship with the spring 422y. Return plate 42
The tip of the paper 2z is designed to be wider than the space between the pins to ensure that the paper is returned onto the pins 300. Further, a portion of the return plate bracket 422X protrudes obliquely toward the pin 300. This is because, as shown in Figure 44, when returning weak paper or curly paper P, etc., there is a risk that it may escape upwards even if it is pushed by the return plate 422z, so the guide plate is used as a countermeasure for this problem. It is. In the above manner, the stapled paper P is reliably returned onto the pins.

After that, the stapler 401 and paper pulling device 402
is transported downward to the next pin, where the stapling operation similar to that described above is repeated.

As shown in FIG. 39, at the edge portion of each pin 300 facing the stapler 401 side, a pin fence 316 for aligning the stack of recording sheets is provided between the pins 300 and 300.
It is provided so that it starts up from 0. The lower edge portion of this pin fence 316 is rotatably attached to a support shaft 425 provided along the lower surface side of a pin 423, whereby the pin fence 316 is tilted to the open position shown in FIG. It has become so.

Both end portions of the support shaft 425 are rotatably supported by bearing pieces 423b formed downward at both end edge portions of the pin 300. Further, a coil spring 426 is attached to the support shaft 425.

Both winding end portions of this winding spring 426 are abutted and locked against the lower surface side of the pin 300 and the back side of the pin fence 316, respectively, and the rotational force of the winding spring 426 causes the pin fence 3i6 to move in the rising direction. It is beginning to receive force.

Furthermore, the pin fence 316 is opened as the stapler 401 moves up and down via a fence tilting member. This fence tilting member includes a fence movable plate 427 attached to the support shaft 425 side,
Fence release plate 428 provided on the stapler 401 side
It consists of

The fence movable plate 427 is inserted into a fan-shaped hole opened in one piece 424a of the pin fence 316.
27, and when the fence movable plate 427 is rotated downward, a piece 316 of the pin fence 316 is inserted.
The lower part of the fan-shaped hole a is brought into contact with the pin fence 316 so that the pin fence 316 is tilted according to the fence movable plate 427. Further, when the fence movable plate 427 is rotated upward, it is rotated away from the pin fence 316 side without contacting it, so the fence movable plate 427 is rotated freely. It happens.

Further, the rollers 428a of the fence release plate 428 are extended to a position where they come into contact with the fence movable plate 427,
When the stapler 401 moves up and down, it contacts the fence movable plate 427 and rotates the fence movable plate 427.

In the apparatus in this embodiment, when a sorting operation is first performed, the pin fence 316 is maintained in the upright position by the rotational force of the coiled spring 426, as shown in FIG. As a result, the edges of the sheets discharged onto the pins 423 come into contact with the pin fence 316, thereby aligning the sheets.

When this sorting operation is completed, the above-mentioned stapler 40
1 begins to descend, and the roller 428a of the fence release plate 428 on the stapler 401 side comes into contact with the fence movable plate 427 on the pin 300 side. And fence movable board 427
is rotated to the lower position as shown in FIG. As the fence movable plate 427 rotates, the pin fence 3
16 is tilted against the rotational force of coil spring 426, thereby releasing pin 300. At this time, the pin fence 316 and the fence movable plate 427 are
The pin 300 is pushed down to a lower position than the surface position A indicated by the ¥ line. In this state, the stapling operation as described in the above embodiment is performed.

At the same time as the stapling operation is completed and the paper stack is returned to the original position of the pin 300, or while the paper is being returned,
Stapler 401 is moved downward toward the next pin. When the fence release plate 428 is separated from the fence movable plate 427 by the downward movement of the stapler 401, the pin fence 316 is raised by the rotational force of the coiled spring 426 and returned to its original position. Such opening operation and stapling operation of the napin pins 300 are performed on all the sorted pins 300.

Once all the stacks of recording paper have been stapled,
The stapler 401 is raised and returned to the highest home position. The home position is located further above the first stage pin 300 located at the top. When the stapler 401 returns, the stapler 401
The fence release plate 428 of the 01 example is the fence movable plate 427
However, in this case, as shown in FIG.
6 is not rotated at all. The fence release plate 4 of the stapler 401 is removed by the upward movement of the stapler 401.
28 is removed from the movable fence plate 427 side, the movable fence plate 427 is returned to its original position as shown in FIG. 39 by its own weight.

In the embodiment shown in FIG. 42, an elastic body 429 that receives a fence movable plate 427 is installed on the pin fence 316 side. In such an embodiment, when the stapler 401 returns, when the fence movable plate 427 is rotated upward in an idling state, the fence movable plate 427 comes into contact with the elastic body 429 side and is received. is,
The fence movable plate 427 is returned to its original position by the bending repulsive force of the elastic body 429.

Next, regarding replacing the staple cartridge of the stapler 401.
This will be explained based on FIGS. 46 to 50.

In this embodiment, the RPC main body (not shown) has a paper reversing device, and the paper is ejected from the first sheet of the bundle of documents with the image surface facing downward, so the stapler 401 is installed in the opposite direction.

FIG. 46 shows the configuration of the stapler 401. In the same figure, by pushing the release lever 480C upward, the shaft 48
When the shaft 480E moves clockwise around 0F and slides in the groove, the release claw 480B moves counterclockwise around the shaft 480D to release the shaft 481E (FIG. 47).

Furthermore, as shown in FIG. 48, since the shaft 481E is released, the stapler section 481 can be moved clockwise around the shaft 483, and the release claw 480B is returned to its initial state by the spring 480G. Ru. When the stapler section 481 is moved clockwise, the shaft 482A slides in the groove and is locked in the groove, the stapler section 481 is also locked. In this state, the stapler section 481 is stopped at a slightly oblique angle rather than vertically, and is almost exposed from the exterior of the sorter main body, allowing the user to easily replace the staple cartridge 481C. After the needle cartridge 481C is replaced, as shown in FIG. 49, by pushing the release lever 480C upward, it moves clockwise around the shaft 480F, and the lock of the shaft 482A is released. Since the shaft 482A is unlocked, the stapler section 481 can be moved counterclockwise around the shaft 483, and the release claw 480C is moved by the spring 4.
80G returns to the initial state.

As shown in FIG. 50, when the stapler section 481 is moved counterclockwise, the shaft 481E hits the release claw 480B.
The release claw 480B opens due to the force of the shaft 481E, and the shaft 4
After 81E passes, the release claw 480B releases the spring 48.
It is closed by 0G and the stapler section 481 is locked.

With such an operation, the staple cartridge of the stapler can be easily replaced.

FIG. 53 is a block diagram of the control system in this embodiment.
601. RAM602. I10 baud) 603,606,
This is a microcomputer control system comprised of a clock timer controller 604 (hereinafter abbreviated as CTC) and a universal, asynchronous, receiver-transceiver (hereinafter abbreviated as UART) 605. A sensor switch (SW) that receives signals from each input system (to be described later) via a multiplexer 607 from the I10 port 606 while using the RAM 602 at any time using the ROM 601 in which a program is written.
In response to the input signal from the group, I10 Beau Toro 03. C
Various drivers 608, 61 are activated by the output signal of TC604.
1,615°616.617, phase signal generation section 614.5
Each load, which will be described later, is controlled via SR6.09. The copying machine also includes a receiver 612. Various status and instruction signals are exchanged via the driver 613 and the UART 605.

Specific members of the sensor switch group include an upper pin sensor 631, a lower pin sensor 630, an upper entry sensor 629, a lower entry sensor 628, a size home sensor 627, a size detection sensor 531, a swing home sensor 626, an upper and lower home sensor 403d, Vertical position sensor 4
15. Before chuck sensor 422j, after chuck sensor 4
22k.

Staple home sensor 625, staple presence/absence sensor 624,
Paper presence sensor 623, cover top switch 622, door left switch 621, door right switch 620, entrance sensor 6
19, a paper discharge sensor 618, etc.

In addition, as loads (output system), drive motor (AC motor) 200, no staple display 656, staple operation display 655, deflection solenoid (SQL) 635, switching 5OL
634, Electromagnetic clutch (CL) 421 c, Staple motor (DC-1:-ta) 632, Chuck motor (
There are a DC motor (forward/reverse rotation) 422f, a vertical movement motor (stepping motor) 409, a size movement motor (stepping motor 5) 5, a swing motor (stepping motor) 520, and the like.

Among the signals exchanged with the copying machine, the signals sent from the copying machine to the sorter and stapler include a sorter start signal, a copying machine ejection signal, a mode signal, a size signal, a staple start signal, a staple end signal, and a service signal. Call reset 4 = No. (S, C.

The signals sent from the sorter and stapler to the copier include an eject signal, each door cover open signal, a JAM signal, an over-pin signal, an error signal, a no-staple signal, a staple end signal, a staple permission signal, There are sort permission signals, etc.

The operation and control of the embodiment of the present invention will be described below with reference to flowcharts. The overall operation flow is shown in Figure 54 (a).
It is shown in FIG. 54(b). First, an operation mode signal sent from the copying machine is received (54-1), and a set number signal sent from the copying machine is received (54-2). After copying starts,
A sorter start signal is sent from the copying machine (54-3), and upon reception of that signal, the drive motor 200 is turned on (54-3).
4) The mode becomes sort mode (54-6). When the sorter start signal is not sent, it is in a wait state. The operation in the sorting mode is as shown in FIG. 54(b), in which a size signal indicating the size of paper fed from the copying machine is transmitted a little later than the aforementioned sorter start signal (54-3). (54-10). The receiver receives the size signal and determines whether swinging is possible or not (54-11); if the size is greater than m, the receiver moves the swinging device to the position corresponding to the size signal received (54-12) .

Below, each of the above operations is shown in FIG. 56(a) and FIG. 56(b).
This will be explained according to the subroutine shown in .

The preset operation of the size counter in FIG. 56(a) is as follows:
If a size signal has been received (56-1), size position data is set in the size counter based on the received size signal (56-2), and a swing unit movement instruction (56-2) is sent.
6-3) and returns (RET) (56-4). If the size signal is not received, RET is performed as is.

The moving operation of the rocking device (unit) shown in FIG.
), then RET as is (56-6).

The swinging unit moves (56-5), and it is determined whether swinging is possible or not, and if it is possible (56-7), the size movement motor 5) is turned on at high speed to rotate clockwise (56-7). 8),
It is determined whether the size detection sensor 531 has changed from OFF to ON.

If the size detection sensor 531 has not changed from OFF to ON (56-9), RET is performed as is (56-6).
). If it has changed, reduce the size counter by 1 (56-1
0), the size counter is determined (56-11).

If the size counter is 1, the size movement motor 5) 5
Change the speed to low (56-12) and RET (56-13). If the size counter is 0 (56
-14), and turn off the size movement motor 5) (5).
6-15) To end the movement of the swing unit 56-16
), RET.

Next, returning to the flowchart of FIG. 54(b), when a copy (sheet) is ejected from the copying machine, an ejection signal is sent (54-13). The electromagnetic clutch (CL) 633 is turned on at the timing of receiving this paper discharge signal (54-14)
. Next, a copy is brought in from the copying machine, and the population sensor 619
is 0NL (54-15), this population sensor 619 is ON
At the timing of switching 5OL634 becomes 0NL (54-16
), the paper is ready to be ejected to the sorting pins. A little later than the ON timing of this population sensor 619, the deflection of the ejection pin 5QL among the ejection pins 635 to 654 is ONL,
Guide the copy to the pin < (54-17).

After the copy is ejected and a suitable time elapses until it is placed on the pin (for example, after 300 msec, 54-18), the oscillating motor 520 is turned on and the oscillating plate is moved to align the paper (54- 19). The timing for moving the swing plate is determined based on the detection of the trailing edge of the copy.

This swinging operation will be explained below with reference to FIG. 57 showing a subroutine. When a copy is ejected, the upper entry sensor 629 or lower entry sensor 628, which detects paper ejection to the pin, is first turned on. Next, 629 on the entry sensor when the discharge is completed,
Or the lower 628 changes from ON to OFF (57-1
). The point where this change from ON to OFF is at the trailing edge of the paper.

Entry sensor upper 629 or lower 628 ON to O
A timer provided in the CPU 600 is started at the timing of the change to FF (57-2). Next, the value of the timer is monitored, and from the timer start to 30 in this example.
When it is determined that 0m5EC has passed (57-3), the timer is stopped (57-4) and at the same time if it is above the swing (
57-5), the swing motor 520 is turned on to start swinging (57-6). After that, the above operation is performed every time a copy is ejected, and the paper is aligned.

However, after the number of copies stacked on the pin exceeds the number of sheets that can be stapled (30 sheets in this example), stapling of the ejected copies is prohibited, and the shaking that interferes with sorting is prohibited. and the swing unit is evacuated to the home position.

This operation will be explained below with reference to subroutine FIG.

The number of copies loaded on the pin is determined by counting (58-1) when the copies are ejected to the first pin (5B
-2) Detect. When it is determined that the discharge count value of the leading pin exceeds the number of sheets that can be stapled (58-3), the swinging operation is stopped (58-4), and the swinging unit is evacuated to the home position (5B-5); Thereafter, paper alignment will not be performed for the ejected copies. At the same time, stapling is also prohibited for previously ejected copies (586).

Next, the stapling operation will be explained. Figure 54(b)
, when a stapling start signal is received (54-
20), the stapling operation starts (54-21), and when the stapling operation ends (54-22), the stapling moving unit moves to the home position (54-23).
. The stapling operation is performed by software commands (5
4-24).

There are two types of operation modes for this stapling: a "manual stapling operation mode" in which stapling is performed after sorting is completed, and a "manual stapling operation mode" in which stapling is started automatically after sorting to one pin is completed while the sorting operation continues. There is an "auto staple operation mode".

First, the manual stapling operation will be explained based on FIG. 55(a) showing a subroutine. After the sorting is completed, if a copy is placed on the pin, the copying machine transmits a stapling start signal, and upon receiving this signal, starts operation. First, the stapler 401 at the home position is moved to the first pin to be stapled. After the stapler 401 moves to the first pin, the 55th
The operation proceeds based on the value of the stapling operation sequence counter shown in Figure (a).

When the stapler 401 finishes moving to the first pin, the value of the staple sequence counter is set from 0 to 1 (55-1). Staple sequence counter value is 1
At this time, the chuck motor 422f is turned on, and the chuck unit is advanced (55-2). The front chuck sensor 422j that detects the end of the chuck unit's forward movement is turned on.
Then (55-3), the forward movement of the chuck unit is ended (55-4), the staple sequence counter is set to 2 (55-5), and the operation proceeds to the next step.

When the value of the staple sequence counter is 2, (55-
6), ONL chuck 5OL421C.

(55-7), the staple sequence counter is set to 3 (55-8), and the operation proceeds to the next step.

When the value of the staple sequence counter is 3, (55-
9), hold the state for 0.2 seconds, and after 0.2 seconds (55
-10), set 4 to staple sequence 55
-11), proceed to the next operation.

When the value of the staple sequence counter is 4, (55
-12), turn on the chuck motor 422f and move the chuck unit to the home position (55-13
). The post-chuck sensor 422k that detects the completion of the home movement of the chuck unit is ONL (55-14), the home movement of the chuck unit is completed (55-15), and the staple sequence counter is set to 5 (55-1).
6), proceed to the next operation.

When the value of the staple sequence counter is 5 (55
-17), check the output of the paper presence sensor 623.'55
-18), if there is paper, performs the stapling operation (55-19). Detecting the end of binding operation 55-20)
, sets the staple sequence counter to 6 (55-
12) L, proceed to the next operation. When the output of the paper presence/absence sensor 623 is low heat, the stapling operation is not performed and the operation proceeds to the next step.

When the value of the staple sequence counter is 6, (55
-22), chuck 5OL421C to 0FFL (55
-2, 3), counts up the stapled pin counter and moves the swing motor to move the stapled pins together (
55-24). Then, the value of the staple reservation pin memory indicating the total number of pins to be stapled is compared with the value of the stapled counter, and if the values match (55-25),
Set the staple sequence counter to 0 to end the stapler operation (55-26), then turn the vertical movement motor 4
09 is ONL and the stapler unit is moved to the home position (55-27). Note that the method for calculating the value of the staple reservation pin memory and the low placement of the staple will be described later. When the value of the stapled counter is smaller than the value of the staple reservation pin memory, the staple sequence counter is set (55-28), and the operation proceeds to the next step.

When the value of the staple sequence counter is 7, the state is held for 0.3 seconds, and after 0.3 seconds (55-30) the counter is set to 0 (55-31).
An instruction is given to start moving the stapler to the next pin shown in FIG. 5(b) (55-32).

The operation of the subroutine shown in FIG. 55(b) will be explained below. First, the start of stapler movement is determined, and when the stapler movement start is instructed (55-50), the vertical movement motor 409 is turned on and at the same time a timer is started (
55-5)). When the time is over (55-52), the stapling sequence counter is set to 1 (55-53), and the stapling operation for the next pin is started. 0N10F of vertical position sensor 415
When F is determined (55-54), the vertical movement motor 409 is turned off (55-55), and the movement between the pins is completed.

In this embodiment, the next pin stapler finishes moving approximately 1
By starting the stapling operation for the next pin before 00m5EC, time is reduced.

The above operation is repeated until the value of the staple pin reservation counter and the value of the stapled completed counter match.

The auto stapling operation in step (55-34) in FIG. After receiving this signal, the first copy of the final original is ejected from the machine, and
The stapling operation starts when the copy is shaken.

First, the stapler 401 at the home position is moved to the first pin to be stapled. Stapler 401
After moving to the first pin, the subroutine shown in Fig. 55 (a
) The operation proceeds based on the value of the stapling operation sequence counter written in ). Stapler 401
When the staple sequence counter finishes moving to the first pin, the value of the staple sequence counter is set from 0 to 1 (55-1). When the value of the staple sequence counter is 1, the chuck motor 422f is turned ON and the chuck unit is advanced (55-2). When the chuck front sensor 422j that detects the end of forward movement of the chuck unit is turned on (55-3)
55-4), sets the stapling sequence counter to 2, and proceeds to the next operation. When the value of the staple sequence counter is 2 (55-6), the chuck 5OL421C is turned ONt, (
557), set the staple sequence counter to 3 (55-8), and proceed to the next operation.

When the value of the staple sequence counter is 3, (55
-9), hold the state for 0.2 seconds, and after 0.2 seconds (5
5-10), set 4 to the staple sequence counter 55-11), and proceed to the next operation.

When the value of the staple sequence counter is 4, (55
-12), turn on the chuck motor 422f and move the chuck unit to the home position (55-13
). The post-chuck sensor 422k that detects the completion of the home movement of the chuck unit is ONL (55-14), the home movement of the chuck unit is completed (55-15), and the staple sequence counter is set to 5 (55-1).
6), proceed to the next operation.

When the value of the staple sequence counter is 5 (55
-17) Check the output of the paper presence/absence sensor 62355-
1.8), if there is paper, perform the stapling operation (5
5-19). To detect the end of the slurping operation 55-20), to set 6 to the staple sequence counter 55-12
), proceed to the next operation. When the output of the paper presence/absence sensor 623 indicates that there is no paper, the stapling operation is not performed and the operation proceeds to the next step.

When the value of the staple sequence counter is 6, (55
-22), chuck 5OL421C to 0FFL (55
-23), counts up the stapled pin counter and moves the swing motor to move the pins closer together (55)
-24). Then, the value of the staple pin reservation memory indicating the total number of pins to be stapled is compared with the value of the stapled counter, and if the values match (55-25), the staple sequence counter is set to 0 and the stapler operation is terminated. 55-26>, then vertical movement motor 409
is turned on, and the stapler device 400 is moved to the home position (55-27).

The method for calculating the value of the stapling reservation pin memory and the stapling device will be described later.

When the value of the stapled counter is smaller than the value of the staple pin reservation memory, it indicates up to which pin the oscillation has been applied. The swung pin memory and the stapled counter are compared (55-33), and if the value of the swung pin memory is large, 7 is set in the staple sequence counter and the operation proceeds to the next step. When the values of the swung pin memory are small or equal (55-33), the stapler maintains its state and cancels the oscillation prohibition process 55-34), prompting oscillation. Also, in the specified size (55-35)
If the value of the swung pin memory is 2 or more than the value of the stapled pin memory, the staple sequence counter hair is set and the operation proceeds to the next step (55-36).

If the value is 1 or less, the stapler maintains its state, cancels the swinging prohibition process (55-37), and encourages swinging. Note that the rocking prohibition process and the calculation of the rocked pin memory will be described later.

When oscillation is performed and the value of the oscillated pin memory becomes larger than the value of the stapled pin memory, or when it becomes 2 or more for the specified size, set 7 to the staple sequence counter. 55-28) and proceed to the next operation. Staple sequence counter value is 7
When , the state is held for 0.3 seconds, and after 0.3 seconds,
The subroutine shown in FIG. 55(b) is instructed to start moving the stapler to the next pin.

Calculation of staple reservation pins will be explained according to the subroutine shown in FIG. 59. In order to calculate this, in this embodiment, during the sort mode operation, the previous original copy ejection pin number memory stores the number of pins to which the copy paper of the original has been ejected for each original. It has a pre-ejection maximum pin number memory that stores how many pins have been ejected, and a staple pin number reservation memory that indicates how many pins are to be stapled, and the contents of the memory are moved at the timing shown below. The copying operation is started in the sort mode (59-1), and at the timing when the copy paper is ejected from the first pin of the sorter (59-2), the contents of the previous original copy ejection pin number memory and the previous ejection maximum pin number memory are compared (
59-3) If the value of the previous original copy transfer pin number memory is larger than the value of the front ejection maximum pin number memory, substitute the value of the previous original copy ejection pin number memory to the front ejection maximum pin number memory. 4), 1 is assigned to the previous original copy ejection pin number memory (59-5).

In the previous original copy ejection pin number memory, when a copy is ejected to the second pin, third pin, etc., the value increases to 2.3... In the staple pin number reservation memory, the contents of the current ejection pin number and the previous ejection maximum pin number memory are always compared (59-6), and the contents of the memory with the smaller number are assigned to the staple pin number reservation memory (59-6). 59-7).

Since the contents of the staple pin number reservation memory change depending on the situation, it can be handled even when a stapling operation is performed without ejecting a copy, as in the auto stapling mode.

By doing so, the pin that activates the binding means 400 can be the pin from which the paper corresponding to the final document was ejected, and it is possible to bind a set of paper that has all the pages as much as possible.

Furthermore, by preventing the binding means 400 from operating on a pin on which only one sheet of paper is ejected from which the paper corresponding to the final original is ejected, even when the number of copies of the final original is changed. , unnecessary binding operations can be prevented.

The stapling priority swing prohibition process will be explained according to the subroutine shown in FIG. 60.

First, please check if the stapling operation is in progress.
-1) If YES, chuck 5QL (solenoid)
Please check whether 6O-2) is turned on.
If it is ES, check whether the time has been 0.3 S EC or more after the chuck finishes moving to the home position. 10-3), N.

If so, permit rocking (60-4). If check S
If QL is ONL, prohibit rocking (60
-5). Furthermore, if the time has exceeded 0.3 SEC after the chuck finishes moving to the home position, the swinging is prohibited and RET is performed. Further, if the stapling operation is not in progress, swinging is unconditionally permitted and RET is performed.

Next, calculation of the oscillated pin memory will be explained according to the subroutine shown in FIG. 61.

First, check whether one rocking operation has been performed (6l-1), and if 11 rocking movements have not been performed,
Just RET. Further, if one swing operation has been performed, the value of the number of paper ejection pins is entered in the swing completed pin memory (61-2), and RET is performed. The number of paper discharge pins indicates how many pins are currently being ejected, and the swung pin memory indicates how many pins are currently being oscillated.

The staple paper collection will be explained according to the subroutine shown in FIG. 62.

After stapling (62-1), chuck solenoid 4
When 21C is turned off, the stapled copy (paper) slides on the pins by the paper return bracket 422z and is pushed back into the swing plate rotation area, completing the stapling 1 operation. At this time, the staple 1 operation end flag is set in the subroutine shown in FIG. 55(a). The completion of the staple 1 operation is determined based on the content of this staple 1 operation end flag. After determining that the staple 1 operation has been completed, it moves to the next pin and performs the staple 1 operation again, and when it determines that the chuck 5OL 421c is turned on (62-2>, it starts swinging (62-3).
). Then, the stapled paper on the front pin is moved to a predetermined position. By this staple paper shifting operation, the stapled paper on the pin is moved to a predetermined position so as not to adversely affect the alignment of the paper discharged after the next pin.

In addition to the functions and operations described above, this embodiment has several functions and operations shown below.

Each will be explained based on the flow of the subroutine. First of all, two-system stapling processing means that the sorter pins are
After sorting and stapling one system, it is possible to sort and staple the other system without releasing the pins of the first system. Mode A, where the condition is that the above and
There is a mode B in which the copy size of the bobbin thread to be processed later is larger than that of the preprocessed system, and can be switched according to the user.

Mode A-2 system stapling processing will be explained based on the subroutine flow of FIG. 63.

Here, sorting using the other system after processing by the I system is called dual sort. When attempting to perform dual sort, if dual sort is not possible (63-1)
, disable sort mode63. -2), warn. If dual sorting is possible, the paper size is detected and
If the paper size at the previous sort and the paper size to be dual sorted are the same size, the operation continues as is.

If the paper size at the previous sort and the paper size to be dual sorted are different sizes (63-3), the 1Σ moving part is retracted (63-4) and stapling is prohibited (63-5).
, continue operation.

Next, regarding mode B-2 system stapling processing, the 64th section
The explanation will be based on the subroutine flow shown in the figure.

When attempting to perform dual sorting, if dual sorting is not possible (64-1), sort mode is prohibited and a warning is issued (64-2). If dual sorting is possible, the paper size is detected, and if the paper size to be dual sorted is larger than the paper size used for the previous sort, or if the paper sizes are the same size, the operation continues. do.

If the paper size to be dual sorted is smaller than the paper size at the previous sorting (64-3), the swinging section is retracted (64-4) and stapling is prohibited.
-5), continue operation.

Although the above process describes prohibition of stapling by the stapling means 401, it is also possible to cancel the operation of the aligning means 502 instead of the stapling means 401 using a similar process.

No. 65 regarding door opening during stapling process
The explanation will be based on the subroutine flow shown in the figure.

During stapling operation (65-1), if the stapler door, sorter door, and sorter top cover are all closed, the operation continues, and if the stapler door is opened (65-2), the staple sequence counter is set to 0 (65-3), and the entire load is turned off (65-4).

The stapler door is closed during the stapling operation.
If either the sorter door or sorter top cover is opened (
Set to state 1. 65-5) will be explained below.

If the chuck unit is moving forward in state a1 (65-6
), set the staple sequence counter to O65-7
), the chuck motor is turned off (65-8).

If it is after the chuck unit moves forward in state 1 and within 0.2 seconds after chuck 5QL421C is turned on (6
5-9), set the staple sequence counter to 06
5-10), turn off chuck 5OL421C (6
5-11).

The processing after the chuck unit moves forward in state B1 and after 0.2 seconds after chuck SQL is turned on (state B2) will be described below.

If the chuck unit is retracting in state 2 (65-1
2) Set the staple sequence counter to 4 and set it to 65-
13), continue operation.

If the chuck unit has moved backward in state 2 and the stapler is in the closing operation (65-14), the staple sequence counter is set to 5 (65-15) and the operation continues.

If the chuck unit has retreated in state 2 and the stapler closing operation has been completed, the staple sequence counter is set to 0 (65-3) and the entire load is turned off (65-4).

In addition, if the vertical movement motor 409 is operating in state 1,
Set the staple sequence counter to 0 and turn off the entire load.
Make it.

Regarding variable descending speed for staple start pins,
This will be explained based on the subroutine flow shown in FIG. 66.

If the currently stopped position is other than the home position (66-1), set the motor rotation speed to high speed.
-2), turn the vertical movement motor 409 ONL and descend (6
6-3).

If the current stopped position is the home position,
The descending speed is varied depending on the number of pins to be stopped next.

In other words, when the pin to stop is the first pin, (66
-4), set the rotation speed to high speed 66-2), and turn on the vertical movement motor 409 (66-3). If the pin to be stopped is the second or higher pin (66-4), set the rotation speed to low speed (66-5), and turn on the vertical movement motor 409 (66-5).
66-3).

Next, the function of slowing up and slowing down vertical movement will be explained. This function gradually increases the movement speed when starting the vertical movement, moves at a constant speed when it reaches the set value, and when the vertical movement stops, gradually decreases the movement speed from before the pin position to stop. When the value is reached, it is moved at a constant speed and stopped at the stop pin position.

This will be explained based on the subroutine flow shown in FIG. 67. 1m
In the subroutine that is called every 5EC, after the vertical movement motor 409 is turned on (67-1), if the slow-up operation has not been completed (67-2), the slow-up counter increases by one count every time the subroutine is called. (67-3). R whose speed is set to gradually increase based on the value of the slow-up counter (67-4)
Speed data is set in the CTC 604 from among the speed data group in the OM 601 (67-5). This CTC
A frequency based on the set speed data is generated from 604 and sent to the phase signal generation section 614 in FIG. The phase signal from the phase signal generation unit 614 is sent to the constant current driver 61.
5, and the vertical movement motor 409 operates at a rotation speed corresponding to the speed data.

When the slow-up counter reaches a certain set value (67-6), the slow-up is terminated (67-13),
The vertical movement motor 409 then operates at a constant rotation speed.

After a certain period of time, the slowdown operation starts (677), and the slowdown counter increments by one for each subroutine call (67-8). Set the speed to gradually decrease based on the value of the slowdown counter (
67-9) Set the speed data to CTC6α4 from the speed data group in the ROM601 (67-9).
-10) From this CTC6Q4, a frequency based on the set speed data is generated, and the phase signal generation section 61
Sent to 4. A phase signal is sent from the phase signal generation unit 614 to the constant current driver 615, and the vertical movement motor 409 operates at a rotation speed corresponding to the speed data.

When the slowdown counter reaches a certain set value (67-11), terminate the slowdown.67-12
), the vertical movement motor 409 then operates at a constant rotation speed. When the stapler reaches the pin to be stopped, the vertical movement motor 409 stops at 0FFL, and the slow-up counter and slow-down counter are cleared (67-
14).

The vertical movement abnormality mitigation routine will be explained based on the subroutine flow shown in FIG. 68.

When an abnormality in the vertical movement motor 409 is detected, if the abnormality detection count number (68-1) is the second time, it is (6B -
2) Send an abnormal signal to clear the count 6B-6)
, a serviceman is called (68-7). However, when the abnormality is detected for the first time (68-2), the vertical movement motor 4
If 09 is rising (68-3), the motor 409 is restarted (6B-4) and the operation is continued, and if it is falling, a jam signal is transmitted (68-5), and the process moves to the next process.

Specifically, the stapling means 401 or the aligning means 50
If some abnormality occurs in step 2, for example, a first interruption signal that simply interrupts paper ejection from the copying machine main body;
a second interruption signal that interrupts paper ejection from the close-up camera body and requests an abnormality reset signal; transmits the first interruption signal when the first abnormality is detected;
It is conceivable to transmit an interruption signal when an abnormality is detected for the second time or later. It is also conceivable that the first interruption signal is a jam signal and the second interruption signal is an abnormality signal. It should be noted that the abnormality is not limited to that in the vertical movement motor 409, but also includes an abnormal state in each part constituting the stapling means 401 or the aligning means 502. still,
Flowcharts from FIG. 69 to FIG. 79 show processing operations corresponding to various abnormal conditions.

〔Effect of the invention〕

As described above, according to the present invention, even if an abnormality occurs in the apparatus, it can be prevented from occurring, so it is possible to provide a paper processing apparatus with excellent durability and high reliability.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a side view of the embodiment, Fig. 3 is a rear view of the embodiment, and Fig. 4 is a perspective view schematically showing the rocking device. FIG. 5 is a plan view showing the relationship between the swing device and the pin, FIG. 6 is a perspective view showing the pressing member, FIG. 7 is a plan view showing the swing motor, and FIGS. 8 and 9 are the swing Figure 1 showing the relationship between the rotation angle of the dynamic motor and the amount of movement.
Figure 0 is a plan view of the pin, Figure 11 is a side view of the pin, and Figure 12 is a side view of the pin.
The figure is a right side view of the pin, Figures 13, 14, and 15 are cross-sectional views of each part of the pin, Figure 16 is a side view of the static elimination brush portion of the pin, and Figure 17 is another example of the pin. A cross-sectional view showing
Fig. 18 is an explanatory diagram showing the action of the ribs, Fig. 19 is a perspective view showing one state of the paper, Fig. 20 is a perspective view showing the guide section, Figs. 21, 22, 23, 24. 25, 26, 27, and 28 are explanatory diagrams showing the state of the paper on the pins, FIG. 29 is a perspective view of the entire stapler device, FIG. 30 is a plan view of the bracket portion, and FIG. 31 is a plan view of the stapler portion, FIG. 32 is a front view of the stapler portion, FIG. 33 is a side view of the stapler portion, and FIGS. 34, 35, and 36. Figure 37, Figure 38, Figure 39, Figure 40, Figure 41,
FIGS. 42, 43, and 44 are front views explaining the operation of each member of a portion of the stapler, FIG. 45 is a front view of the feed shaft, and FIGS. 46, 47, 48, and 49. , 50th
The figure is a front view illustrating the operation of replacing the staple cartridge lid of the stapler. Figure 5) is a front view of another embodiment of the feed shaft.
Figure 2 is a diagram of the relationship between the speed and the amount of movement when using the feed axis in Figure 5), Figure 53 is a block diagram of the control system, Figures 54, 55, 56, 57, and 58. , FIG. 59. Figure 60, Figure 61, Figure 62, Figure 63, Figure 64,
65, 66, 67, and 68 are flowcharts for explaining the operation of this embodiment, and FIGS. 69 and 7
Figure 0, Figure 71, Figure 72. Figure 73, Figure 74, Figure 75, Figure 76, Figure 77,
FIGS. 78 and 79 are flowcharts for explaining processing operations when an abnormal situation occurs. 300... Pin, 401... Stapling means, 42
1... Chuck part, ・422a... Feed shaft, 422
f... Drive motor, 502... Alignment means, 600.
...control means. Fig. 1 Fig. 2 Fig. 2 Fig. Diagram Diagram Diagram Diagram Diagram Diagram 180'' Figure 16 Figure 17; i't!z Figure 10 Figure 18!!f Figure 19 Figure 201!r Figure l!22 Figure ρ Figure 3 Figure 26 Figure 27 Figure Figure Fig. 37 Fig. 22N 22p Fig. 40 Fig. 41 Fig. 46 Fig. 43 Fig. 44 Fig. ku = Fig. 50 ms2 = Move! ) Fig. (b) Fig. (a) Fig. Fig. 58 Fig. ω Fig. 61 Fig. Fig. 62 Fig. Hiroshi Fig. ■

Claims (5)

[Claims] (1) Paper having a plurality of pins, an aligning means for aligning the sheets ejected onto the pins, a stapling means for stapling the sheets aligned by the aligning means, and a moving means for moving the stapling means to each pin The processing device includes stop position detection means for detecting the stop position of each pin of the stapling means, and a stop position detection means for detecting the stop position of each pin of the stapling means, and measuring time during movement of the stapling means, and detects whether this time exceeds a predetermined time while moving to the stop position. and control means for prohibiting operation of the stapling means when the stapling means is activated. (2) The paper processing apparatus according to claim 1, wherein the stop position detection means includes a detection plate formed in a straight line for each stop position and a sensor for detecting the detection plate. (3) In a paper processing apparatus having a plurality of pins, an alignment means for aligning sheets discharged onto the pins, and a stapling means for stapling the sheets aligned by the alignment means, one cycle of operation of the alignment means 1. A paper processing apparatus comprising: a control means for prohibiting operation of the stapling means when the stapling means exceeds a predetermined time. (4) A plurality of pins, an aligning means for aligning the sheets discharged onto the pins, a stapling means for stapling the sheets aligned by the aligning means, a chuck unit for chucking the aligned sheets, and the chuck unit and a moving means for moving the chuck part to the stapling means, characterized by comprising a control means for prohibiting the operation of the stapling means when the moving time of the chuck section exceeds a predetermined time. paper processing equipment. (5) In a paper processing device having a plurality of pins, an aligning means for aligning sheets discharged onto the pins, and a stapling means for stapling the sheets aligned by the aligning means, a series of operations of the stapling means are performed. Paper processing characterized by comprising a control means that detects a reference position, measures its operation time, and controls the stapling means to prohibit operation when this time exceeds a predetermined time. Device.