JPS60212775A - Automatic sheet processing device - Google Patents

Abstract

PURPOSE:To form a automatic sheet processing device having a very extensive generality by providing a detecting means, timer, etc. separately from a sheet output device without modifying said device at all. CONSTITUTION:A device 1 executes a sheet matching by an inclined tray 6 and the first and the second matching rule plates 7, 8 placed at a right angle with each other, and also executes a bookbinding by means of stapling. Also, a pair of upper and lower sheet guide plates 3, 3, a sheet discharge pinch roller 4 and 5, sheet catching tray 6, and the first and the second sheet matching plates 7, 8 are installed to a device shutter 2. Also, this device is provided with a tray oscillating mechanism 9 for supporting the tray 6 so as to be freely oscillatable and converting it selectively to the first and the second inclined positions, and a stapler mechanism 10 for stapling (binding) in a lump a sheet bundle which is matched in the tray 6 and in an accumulated state.

Description

[Detailed Description of the Invention] [Technical Field] The present invention is applicable to copying machines, printing devices, image forming devices such as simple printing machines, and other devices that output sheets (sheet materials such as cut sheet paper, cards, thin plates, etc.) one after another. It is used by being attached to the sheet output unit of a sheet output device such as a device that receives sheets sequentially output from the sheet output device, automatically aligns the receiving sheets with each other (aligns the sheets with each other), and then The bundle of aligned sheets is automatically bound (stabled and
The present invention relates to an improvement in an automatic sheet processing device that automatically performs gluing, etc.) and automatically discharges the gluing.

[Prior Art] This type of automatic sheet processing device is effective in streamlining office processing, and various proposals have been made.

However, such conventional automatic sheet processing devices are generally used in combination with special models, are large and expensive, and have complex circuit configurations, so they are not suitable for general-purpose copying machines, etc. The problem was that it was difficult to apply.

[Objective] The object of the present invention is to solve the above-mentioned problems and provide an automatic sheet processing device that can be installed at a lower cost and in a sheet output device such as a copying machine without changing the electrical system. It's about doing.

[Example] The present invention will be explained in detail below with reference to the drawings.

Fig. 1 shows the external appearance of one embodiment of the automatic sheet processing device according to the present invention, and Fig. 1 shows the circuit block of the automatic sheet processing device. Sign,! 00 indicates a sheet output device, 200 indicates a pedestal on which the sheet output device +00 is placed, and the sheet output device 100 is a copying machine in this example. 1
o1 is a sheet output port (sheet discharge port) formed horizontally on the left end face plate 102 of the ruler plate machine housing, and 103 is a sheet discharge port located inside the sheet output port 101 and near the output port. It's a pinch roller. A copy sheet on which an image has been formed by an image forming process mechanism (not shown) built into the copying machine housing is discharged and conveyed by the sheet discharge pinch roller 103 and outputted from the output port 101 to the outside of the machine.

(1) General structure of automatic sheet processing device 1 In the device 1 of this example, sheet alignment is performed by an inclined tray 6 and first and N42 sheet alignment ruler plates 7 and 8 arranged at right angles to each other, and bookbinding is performed by a stable. This is done by stopping, and its approximate structure is that the following member φ mechanism is assembled to the device shutter 2.

a As shown in FIG. 3, a pair of upper and lower sheet guide plates 3, 3 that successively accept the sheet P output from the sheet output port 101 of the copying machine 100 and guide it forward; b As shown in FIG. , a sheet collecting tray arranged in an inclined position to receive the sheets sent out from the pinch rollers 4 and 5 to the sheet discharge pinch rollers 4 and 5 c 8 arranged at the tip side of the sheet guide plate 3.3. 6 d First and second, mutually orthogonally arranged sides, which align two adjacent right-angled sides of the sheets successively discharged and deposited into the tray 6 in cooperation with the tray 6, thus aligning the sheets; Sheet alignment plates 7 and e As shown in FIG. Stabler mechanism 1 that collectively stipples (binds) aligned and stacked sheet bundles
0 g In addition, an electric circuit as shown in Figure 11, the electric circuit and a copying machine! Cables (signal transmission/reception lines) etc. connecting to the electric circuit on the 00 side (2) Stapler mechanism 10 (Figures 1.7 to 1-lo) The stabilizer mechanism 10 includes a stapler main body 23 provided above the chassis wide shelf section 2f, It has a drive mechanism section assembled on the lower side of the shelf board section 2r.

The stapler main body 23 is a rear end portion of a channel-type guide member 24 that is positioned and fixed on the upper surface of the chassis wide shelf board 2 [with its longitudinal axis facing toward the opening 22 between the first and second ruler plates 7 and 8. The screw spring 2G is fitted onto the shaft 25 and stretched between the guide member 24 and the stabler main body 23, so that it can be rotated upwardly relative to the kite member 24. It is dynamically energized.

The stapler body 23 includes a Ponks-shaped head portion 27 with an open upper surface provided at the tip, a stapler loading kite groove 28, and a series of staples 2 loaded in the groove 28.
a needle pushing member 3o that constantly presses the rear end side of the stable needle 29 to press the tip side of the stable needle 29 against the outer surface of the opposing side wall 27a of the head section 27; The locked spiral spring 31 and the downwardly facing substantially U-shaped staple point member 32 that is covered with the head portion 27 and can freely swing in the vertical direction with respect to the head portion 27
and a coil spring 33 contracted between the head portion 27 and the hitting point member 32.

The dot member 32 is made by bending a band plate into a substantially U-shape, which is then turned upside down and attached to both downward leg plates 32a and 32b.
Between the staple receiving side wall 27a of the head section 27 and the head front wall 2 on the opposite side? It is placed over the head portion 27 so as to sandwich the portion b. And head front wall 2? 8(a) to 8(c), a slit hole 27c is formed in the vertical direction, and a downward leg plate 32b on the hitting point member side corresponding to the head front wall 27b is formed in FIG.
At a position near the lower side of the leg plate, a diagonally upward cut-and-raised low series 32c is formed so as to protrude inward from the leg plate. It is inset in c. Further, since the side walls 32d and 32e are restricted by the side walls 27e and 27f, the hitting point member 32 does not shift in the lateral direction and can freely slide up and down with respect to the head portion 27, and the contracted coil spring 33 The push-up force caused by the push-up force causes the low link 32c to be held upward against the head portion 27 until it is received against the upper edge of the slit hole 27c.

In the above, the spring pressure F2B of the torsion spring 26 that urges the stapler body 23 to open and rotate relative to the guide member 24 about the shaft 25 and the head portion 2? The spring pressure F33 of the coil spring 33 compressed between the hitting point member 32 and the hitting point member 32 is F28 <
The relationship is set to <F33.

Reference numeral 34 denotes an L-shaped stapler body push-down lever that has a horizontal arm portion 34a and a downward arm portion 34b, and is freely swingable about a shaft 35. A lug 34c is formed that comes into contact with the upper surface of the hitting point member 32, and the lower side of the downward arm 34b is inserted into the lower part of the shelf 2f through a slit hole 2j (Fig. 2) made in the surface of the chassis wide shelf 2f. It is.

3 is a forward/reverse motor for driving the stabler which is mounted and held on the chassis vertical back plate 2a, and 37 is the rotating shaft 3 of the motor.
B is a rotating arm whose base is fixedly supported; 38 is a cam plate also fixed to the shaft 38; HBr and MS2 are cam plates 3
These are first and second microswitches that are turned on and off as the switch 8 rotates. The rotary arm 37 has a long hole 37a formed along its length on its arm surface, and the downward arm portion 34b of the lever 34 is shaped like the above-mentioned.
A pin shaft 34d implanted in the lower end of the rotary arm 37 and the L-shaped arm 8-34 are connected to each other by fitting the pin shaft 34d.

The rotating arm 37 is normally held in a standby position at a rotating angle diagonally upward to the left as shown by the solid line in FIG.

In this state, the cam plate 38 keeps the first microswitch MSI off and the second microswitch MS2 on.
The sideways arm portion 34a is held in a rotational angular position facing the left torso. Then, the stapler body 23 opened and rotated relative to the guide member 24 about the shaft 25 until the upper surface of the dot member 32 came into contact with and was received by the lower surface of the lug 34c of the sideways arm 34a due to the opening rotation force of the torsion spring 28. A state of 0 or more held in the state is referred to as a stapler standby state.

As shown in FIG. 3, sheets sequentially discharged from the copying machine 100 to the tray 6 of the automatic sheet processing device 1 are detected by a discharge detection sensor S1 disposed near the pinch rollers 4 and 5.
Therefore, it is automatically detected.

In FIG. 11, 41 is a control circuit, including an inverter 401, 402 and 403, and an inverter 404.
, signal control circuit 405, stable motor drive circuit 40
6 and a timer circuit 407 for detecting the final number of sheets.

The signal control circuit 405 includes microswitches MSI, AND gates 401, 402, and 403 . and the signals from the timer circuit 407 and control the drive circuit 406 based on these, and the drive circuit 406 controls the motor) 13 based on these signals (and the signal from the sensor S).
to drive. Timer circuit 407 outputs pulses at regular intervals.

First, as shown in FIG. 12, when a discharge detection signal S] is output from the sensor S, the drive circuit 406 counts pulses from the timer circuit 407 and drives the motor x3 after a certain period of 11 seconds. The first stage push-down operation and return operation are performed. This operation (time) is the gate 401, 40
The signal control circuit 405 controls the drive circuit 406 based on the signals input to the signal control circuit 405 via the signals 2, 403 and 404, thereby executing the above-described operation.

Next, a certain period of time (7
A new sheet is sequentially ejected every 12 seconds), and a paper ejection detection signal Sl is output from the sensor S every 12 seconds. This causes the signal control circuit 405 to perform the first-stage push-down and return operation every time the sheet is ejected. The motor M3 is repeatedly driven so that the motor M3 is driven.

Next, a certain number of sheets are ejected from the copying machine 100, and once the sheet ejection is finished, the last sheet ejection detection signal S
Since the next paper discharge detection signal is not output even after 12 seconds have elapsed since the first occurrence, the signal control circuit 405
7, the motor X3 is driven T3 (>T2) seconds after the last discharge detection signal 51 is generated to perform the second stage pressing down and return operation. This action also
Similarly to the above, the signal control circuit 405 controls the drive circuit 40B based on the signal input to the signal control circuit 405 via the AND gates 401, 402, 403 and the input 404, thereby performing the above-described operation. is executed.

Thus, one stapling operation is completed.

In the same manner, the second and subsequent stipple operations can be performed.

Here, a predetermined delay time T1 required for the (copy) sheet ejected to the tray 6 to be completely aligned in the tray 6 is determined based on the detection signal from the ejection detection sensor S at the time of each sheet ejection. After the elapse of time, the control circuit 41 shown in FIG. 11 starts normal rotation driving of the motor x3. The rotating arm 37 is driven by the normal rotation of the motor M3.
The cam plate 38 is rotated clockwise in FIG. Along with this, the L-shaped bar 34 is also rotated counterclockwise about the shaft 35 while pushing down the stapler body 23 against the torsion spring 26. The first microswitch MSI is kept turned on when the cam plate 38 starts rotating. The second microswitch s2 is kept on for a while after that, and the rotating arm is at the almost vertical rotating angle position 3 shown by the one-dot chain line. It turns off when it reaches A.

At this time, the stapler main body 23 is pressed down and rotated by the 8-34 until the lower surface of the head portion 27 of the stapler main body 23 reaches a rotational position where the staple receiver fixedly arranged on the upper surface of the chassis wide shelf portion 2f abuts against the seat 38. (Figure 7, dashed line 23A).

In this state, the striking point member 32 has not yet been pushed down against the coil spring 33 to act on the leading edge of the loading stable needle 29 in the stabler main body 23. This is called step push down.

Then, when the microswitch F12 turns off S2, the motor M3 is reversed, and the rotating arm 37 returns to rotate counterclockwise until the first microswitch MSI turns off again, and the stapler is first rotated. Returns to standby state. This pressing down of the stapler to the first stage and return to the standby state is repeated every time a copy sheet is outputted or discharged from the copying 100 side to the tray 6.

By repeatedly pushing down the first stage of the stabilizer and returning, the copy sheet is ejected from the copying machine 100 to the tray 6, and each time the copy sheet reaches the alignment state, the opening 22 between the first and second ruler plates 7. The stapler needle holder protrudes toward the wide shelf board 2f side of the chassis, and the stapler holder is positioned above the seat 38.The collar 1 holder at each right corner of the rear side of the sheet is positioned above the seat 38 and the head portion 27 of the stapler main body 23 pushed down in the first stage. The sheets are pressed to the bottom side, thereby further improving the mutual alignment of the sheets.

40 (FIGS. 1, 9, and 10) has a base attached to and held on the side surface of the head portion 27 of the Stibler main body 23, and is arranged approximately parallel to the inner longitudinal direction of the first sheet alignment ruler plate 7. This is a rod-shaped member for holding paper that can be made of wood. This paper pressing member 4o presses down the upper surface of the rear side of the alignment sheet in the tray 6 as it moves up and down in accordance with the vertical movement of the head section 27 during the wIJ 1st stage depressing and return cycle of the Stibler. Also, if the sheet has curls, the curls are suppressed and corrected, thereby improving the sortability.

When the paper presser member 4o is lowered, the sheet presser is not pressed, and the tip side of the paper presser member 40 comes into contact with the sheet surface, and as the member 40 continues to descend, the base side surface sequentially comes into contact with the sheet surface, and finally the member 40 The alignment of the sheet with respect to the second ruler plate 8 is further improved by arranging the sheet at an angle such that the entire plate surface contacts the sheet surface and presses the sheet.

Copy machine! 00 into the tray 6, and when the last copy sheet is ejected, a timer circuit in the control circuit 41 of the automatic sheet processing device prevents the sheet from being ejected even after the normal paper ejection time interval has elapsed. It is detected that the predetermined number of strokes has been completed, and the motor M3 is thereby started to rotate in the normal direction, and the main body of the stapler is pushed down. However, in this case, the stabler is based on the input of the above condition signal! Even after the second microswitch MS2 is turned off due to the $1 step depression state, the switch H remains
Rotating arm 3 regardless of 52 off? is rotated slightly more clockwise than when the first stage was pressed down, reaching the almost vertical vertical rotational angle position shown by the two-dot chain line in Figure 47, and the motor (13) is turned off until the first microswitch MSI is also turned off. Rotation drive continues. The striking member 32 of the stapler main body 23 resists the coil spring 33 during the counterclockwise rotation process of the L-shaped bar 34 due to the forward rotation of the motor The dotting point member 32 is sufficiently pushed down against the head portion 27 (FIG. 148 (C)), and the leading edge of the transfer stable needles 29 in the stabler body 23 is moved below the downward leg plate 32a of the dotting point member 32. The needle guard is pushed out toward the seat 38 through the needle push-out gap opening 27d at the edge, and as a result, the lower surface of the head portion 27 and the sheet bundle portion sandwiched between the seat 39 are still-locked all at once. The above-mentioned pressing down state of the dot member is referred to as the second pressing down of the stapler.

Then, when the second step of the stapler is pressed down and the first microswitch MSI is turned off, the motor M3
is reversed, and the stapler returns to its initial standby state (solid line S in Figure 7).

[Effects] As explained above, according to the present invention, a detection means, a timer, etc. are separately provided without making any modifications to the sheet output device, so that a highly versatile automatic sheet processing device can be achieved. can be provided.

Further, according to the present invention, it is possible to automatically bind sheets with a fixed number of patterns by confirming the final paper discharge using the detection signal from the detection means and the timer.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the sheet output device installed on the sheet output port side, Figure vJ2 is a perspective view of the device chassis, Figure 3 is a vertical side view of the device, and Figure 4 is the same cross section. 5 is a front view of the tray swinging mechanism, FIGS. 6(a) and 6(b) are sectional views of the first and second sheet alignment ruler plates, respectively, and FIG. 7 is a front view of the stibling mechanism. Longitudinal side view, Fig. 8(a)
or C) are respectively a front view, a longitudinal side view, and a longitudinal side view of the stapler head portion with the needle pushed down; Fig. 9 is a plan view of the paper presser member portion; Fig. 1O is the same front view; Figure 11 is a block diagram showing one embodiment of the present invention;
The figure is a time chart. l... Sheet automatic processing device, 100... Sheet output device such as a copying machine, 200...
Pedestal, 6... Sheet collecting inclined tray, 7.8... First and second sheet alignment ruler plates, 9... Tray swinging mechanism, lO... Stapler mechanism (bookbinding means). Patent Applicant Canon Co., Ltd. Agent Patent Attorney Yoshi Tani - O] Book Figure 4 Figure 5 e Figure 6 (0) 6 7b (b) Figure 9 Figure 10

Claims (1)

[Scope of Claims] A sheet collection tray that receives sheets output from a sheet output device; a detection means that detects a sheet each time a sheet is discharged from the sheet output device into the tray; and the detection means. An automatic sheet processing apparatus comprising means for detecting that a predetermined number of sheets have been discharged into the tray based on a detection signal from the means. (Hereafter, margin)