JPH05319686A - Paper piece folding device - Google Patents

Abstract

PURPOSE:To perform a working such as boring during paper folding operation, and realize a high-speed treatment by providing a working means for applying the working different from paper folding to the carrying stopped part of a paper piece at the time of carrying stop during the paper folding operation of a paper folding means for folding the supplied paper piece. CONSTITUTION:When Z-folding is selected by mode selection, a paper piece is first fed by the rotation of a feed roller pair 12, a paper piece guide deflecting member 17 is retreated in the second position shown by ON of a drawing hole sensor 20, and a paper folding roller pair 13 is operated to draw the paper piece. When a determined feed quantity of the paper piece is detected, the paper feed roller pair 13 is once stopped, a working such as boring by a working means 21 is applied to the part of the paper piece stopping on an outlet side foundation guide plate 15. The feed of the paper piece is continued during this working period to curve down the paper piece into a suspended state, and when a determined rotating number is detected, a deflecting member 17 is returned to a first position close to a paper piece drawing hole 16, and the paper folding roller pair 13 is restarted to provide the Z-folded state of the paper piece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention folds a piece of paper in two or three.
The present invention relates to a paper piece folding device that folds in half (so-called Z-folding), and is used to fold a paper piece discharged from an image forming apparatus such as various plotters, printers, printing devices, and copying devices.

[0002]

2. Description of the Related Art Various plotters, printers, printing devices,
In a copying machine or the like, a paper piece on which an image or the like is formed by these apparatuses is usually stored in the discharged paper storage means as it is, but sometimes it is made into a filing size, or for the purpose of saving storage space. It is necessary to fold these pieces of paper into two or three (Z) folds. In particular, in the case of a large-sized piece of paper, folding the discharged piece of paper is often an essential requirement in view of the storage space.

As a paper piece folding device for such a purpose, a so-called three-roller system is conventionally known.

It is well known that the three-roller system is provided with a main roller capable of forward and reverse rotations on the downstream side of the feed roller, and two driven rollers are brought into rolling contact with the main roller, and the main roller is appropriately used. The paper is normally or reversely rotated, and a piece of paper is appropriately put in or taken out from the two rolling contact points (actually, the rolling contact line) so as to be folded in half or Z-folded.

[0005]

However, since the paper folding operation is performed by the forward and reverse rotation of the three rollers, the amount of movement of the paper piece at the paper folding portion is large and the paper piece is easily damaged.

Further, when processing such as punching or stamping is performed on the paper piece, the paper piece needs to be temporarily stopped only for that purpose, which is wasteful in terms of time.

The present invention provides a paper piece folding device in which the movement of the paper piece is small in the paper folding operation and there is little risk of damaging the paper piece, while processing such as punching can be performed during the paper folding operation.
An object is to provide a paper piece folding device capable of high-speed processing.

[0008]

In order to achieve the above object, the present invention provides a paper folding means for folding a supplied paper piece,
By providing a processing means for performing processing different from the paper folding at the transportation stop portion of the paper piece when the paper folding means stops the transportation during the paper folding operation, high speed processing is enabled.

Further, a conveying means for conveying the paper pieces, a paper folding means for folding the paper pieces conveyed by the conveying means, and a first position for guiding the paper pieces conveyed from the conveying means to the paper folding means. , And a sheet piece guide deflecting means that moves between a second position where the conveying means and the paper folding means are opened, and the state where the sheet piece guide deflecting means is moved to the first position, After pulling the leading end of the piece of paper conveyed by the conveying means into the paper folding means, the paper piece guide deflecting means is retracted to the second position, and a speed difference is generated between the conveying means and the paper folding means. The paper piece is bent and suspended between the conveying means and the paper folding means, and then the paper piece guide deflecting means is moved to the first position while the conveyance of the paper piece is stopped. Pull the part into the paper folding means Allowed by providing a control means for 3 folded pieces of paper and allowed the 3-fold by small amount of movement.

Further, the control means, while moving the paper piece guide deflecting means to the second position, suspends the front end portion of the paper piece conveyed by the conveying means by a predetermined amount, and then the paper piece guide deflecting means. Is moved to the first position, and a predetermined portion of the piece of paper is pulled into the paper folding means,
It is also possible to fold a piece of paper in half.

Furthermore, in a state where the paper piece guide deflecting means is moved to the first position, the leading end portion of the paper piece sent out from the paper folding means is drawn into the conveying means, and then the paper piece guide deflecting means. Is retracted to the second position, a speed difference is provided between the conveying means and the paper folding means, and the paper piece is curved and suspended between the conveying means and the paper folding means. It is also possible to move the paper piece guide deflecting means to the first position in a state where the conveyance is stopped and draw a predetermined portion of the paper piece into the paper folding means.
Folding is possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the paper piece folding device 10 has a conveying means, for example, a pair of feed rollers 12 on the upstream side of a substantially horizontal upper guide plate 11, and a pair of paper folding roller pairs 13 on the downstream side. Is equipped with. The upper and lower sides of the pair of paper folding rollers 13 may be drive rollers, but in the figure, the upper side is a drive roller 13a and the lower roller is a driven roller 13b. And in the figure the drive roller 1
The clockwise rotation of 3a is a forward rotation, and the counterclockwise rotation is a reverse rotation.

Each roller 13a, 1 of the paper folding roller pair 13
In the figure of the contact point of 3b, the right side of this contact point is set as the paper piece inlet 16 because the right side of this contact point draws in the paper piece when the drive roller 13a is normally rotated.

Below the upper guide plate 11, a pair of feed rollers 1 is provided.
An inlet side lower guide plate 14 is provided on the second side, and an outlet side lower guide plate 15 is provided on the downstream side of the paper folding roller pair 13.

As shown in the drawing, a paper piece guide deflecting member 17 is disposed obliquely downward from the paper piece inlet port 16.

The paper piece guide / deflection member 17 has a paper piece inlet 1.
A small roller 18 is attached to the tip end on the 6 side.

The paper piece guide deflecting member 17 occupies a first position for bringing the small roller 18 close to the paper piece inlet 16 as shown in FIG. 1 and a second position retracted obliquely downward as shown in FIG. Is configured. The means for this movement can be configured by a known mechanical drive means such as a solenoid or a pneumatic cylinder.

A paper feed sensor 19 for detecting the presence / absence of a piece of paper is provided on the entrance side of the feed roller pair 12, and a lead-in sensor 20 for detecting the leading end of the piece of paper is provided in the vicinity of the paper-piece inlet 16. At the same time, although not shown, the feed roller pair 12 and the paper folding roller pair 13 are provided with well-known rotation speed counting means, respectively.

On the downstream side of the pair of paper folding rollers 13, a processing means 21 for making a hole in a piece of paper, perforating, stamping or the like by utilizing the time during the temporary stop in the tri-folding (Z-folding) mode. Is provided. The processing means 21 as described above does not have a problem in its configuration,
The feature is that such processing is performed during the above-mentioned pause time without spending time therefor.

Further, a control device which operates as shown in FIGS. 6 to 8 is provided.

The paper pieces include copy papers such as A4, A3, B5 and B4, tracing paper, synthetic resin sheets and the like.

Next, the operation will be described.

First, as shown in FIG. 6, in order to cause the apparatus 10 to perform the paper folding operation, mode selection is performed by an operation button (not shown) (step ST01). The operation shown in FIG. 7 is selected in the case of Z-folding, and the operation shown in FIG. 8 is selected in the case of double-folding (ST02).

First, the case where the Z-folding mode is selected will be described with reference to FIG.

When the Z-folding mode is selected, it is immediately verified whether or not the paper piece guide deflecting member 17 is in the first position, and if the member 17 is in the first position, the paper feed sensor 19 is simultaneously detected.
The presence or absence of a piece of paper to be processed is verified (steps ST1 and ST2).

When the paper feed sensor 19 is turned on, the pair of feed rollers 12
Starts to work and a piece of paper is fed. At this time, the paper feed amount by the feed roller pair 12 is detected by the rotation number counting means (not shown). It is well known that a counter may be built in the control device instead of the rotation speed counting means. When the pull-in port sensor 20 is turned on, the paper piece guide deflecting member 17 moves to the second position as shown in FIG. 2 and the paper folding roller pair 13 is actuated to draw in the paper piece. At the same time, the rotation speed counting means (not shown) is used. The paper feed amount is detected. Then, at the time when the predetermined amount is sent, the pair of paper folding rollers 13 is temporarily stopped (ST3 to ST8). If necessary processing such as punching is performed on the paper piece during this temporary stop, the required processing can be performed on the stopped paper piece on the outlet side lower guide plate 15 (ST.
9-ST10). Of course, if such processing is unnecessary, step ST10 is skipped.

On the other hand, even during the above period, the feed roller pair 12 continues to feed the pieces of paper, and the pieces of paper are curved and suspended downward as shown in FIG. When the predetermined rotation speed is detected (ST1
1) Then, the paper piece guide deflecting member 17 retracted obliquely downward to the second position is returned to the first position (ST12), the paper folding roller pair is restarted (ST13), and at this time, the predetermined position of the paper piece. Is drawn into the paper piece drawing-in port 16 of the paper folding roller pair 13. With this, the paper piece is Z-folded and fed, the lead-in sensor 20 detects the rear end of the paper piece, and the paper feed sensor 19
When the sheet is detected (ST14, 15), the operation returns to step ST3, and the above operation is repeated.

If there is no paper piece at the paper feed sensor 19, the Z-folding operation of the paper piece is completed.

Next, the case where the half-fold mode is selected will be described with reference to FIG.

In the two-fold mode, it is first verified that the paper piece guide deflecting member 17 is in the second position (step ST
20) Further, on condition that the paper feed sensor 19 detects a paper leaf (ST21), the feed roller pair 12 starts the feeding operation of the paper leaf (at this time, the counting of the number of rotations is simultaneously started) (ST22). ..

When the predetermined feed amount is detected (ST2
3) The piece of paper hangs with its tip facing down, as shown in Figure 4.
Then, the paper piece guide deflecting member 17 moves to the first position as shown in FIG. 5 (ST24), and when the drawing-in sensor 20 is turned on (ST25), the paper folding roller pair 13 rotates to draw in the paper piece folded in two. (ST26), when the trailing edge is detected by the pull-in port sensor 20 (ST27), the presence / absence of a paper piece is verified by the paper feed sensor 19 (ST28). The operation is restarted. If there is no piece of paper, the paper folding operation in this mode is completed here.

In the above embodiment, the sheet is folded and processed in the process of transporting the paper piece from the right side to the left side in FIG. 1, but it is processed in the process of transporting it in the opposite direction as shown in FIG. Good. That is, the basic structure is almost the same as in FIG. 1, but the operation is as follows, for example. First, in a state where the paper piece guide deflecting member 17 is moved to the first position, the paper piece sent by the feed roller pair 30 is sent to the feed roller pair 12 via the paper folding roller pair 13 and drawn. After that, the paper piece guide deflecting member 17 is retracted to the second position, a speed difference is provided between the feed roller pair 12 and the paper folding roller pair 13 to suspend the paper piece in a curved manner, and then the conveyance of the paper piece is stopped. In this state, processing is performed by the processing means 21, the paper piece guide deflecting member 17 is moved to the first position, the paper folding roller 13 is reversed, and a predetermined portion of the paper piece is drawn into the paper folding roller 13 to be folded in three. And the paper folding roller 1
3 is rotated in the normal direction and is fed to the feed roller 12 and discharged.

By the way, in FIG. 9, the paper piece guide deflection member 17 is shown.
Is moved in the carrying direction, but it is naturally applicable to the embodiment of FIG.

[0035]

According to the paper piece folding device of the present invention, the paper folding means for folding the supplied paper piece and the paper folding means at the conveyance stop portion of the paper piece when the paper folding means stops the conveyance during the paper folding operation. Since the processing means for performing different processing is provided, it is not necessary to separately set a wasteful time for processing, and it is possible to remarkably save the processing time of the paper piece.

Further, a conveying means for conveying the paper piece, a paper folding means for folding the paper piece conveyed by the conveying means, and a first position for guiding the paper piece conveyed from the conveying means to the paper folding means. , And a sheet piece guide deflecting means that moves between a second position where the conveying means and the paper folding means are opened, and the state where the sheet piece guide deflecting means is moved to the first position, After pulling the leading end of the piece of paper conveyed by the conveying means into the paper folding means, the paper piece guide deflecting means is retracted to the second position, and a speed difference is generated between the conveying means and the paper folding means. The paper piece is bent and suspended between the conveying means and the paper folding means, and then the paper piece guide deflecting means is moved to the first position while the conveyance of the paper piece is stopped. Pull the part into the paper folding means By so by providing a control means for trifold the paper, paper of moves can trifold small, little damage the paper.

Further, in a state where the paper piece guide deflecting means is moved to the second position, the leading end of the paper piece conveyed by the conveying means is suspended by a predetermined amount, and then the paper piece guide deflecting means is moved to the first position. By providing a control unit that moves to the position 1 and draws a predetermined portion of the paper piece into the paper folding unit to fold the paper piece in two, it is possible to fold the paper piece in two with a small amount of movement.

Further, the paper piece guide deflecting means is provided with the first means.
In the state of being moved to the position of, after pulling the leading end of the piece of paper conveyed by the conveying means into the paper folding means,
The paper piece guide deflecting means is retracted to the second position, a speed difference is provided between the conveying means and the paper folding means, and the paper piece is curved and suspended between the conveying means and the paper folding means. After that, the paper piece guide deflecting means is moved to the first position with the transportation of the paper piece stopped, and a predetermined portion of the paper piece is drawn into the paper folding means to fold the paper piece in three-fold mode, and In the state in which the paper piece guide deflecting means is moved to the second position, the paper piece guide deflecting means is moved to the first position after suspending the front end portion of the paper piece conveyed by the conveying means by a predetermined amount. By providing a control means having a two-fold mode in which a predetermined portion of the paper piece is pulled into the paper folding means and the paper piece is folded in two, three-fold and two-fold can be performed with a small movement amount.

Further, a paper folding means for folding the supplied paper piece, a conveying means for conveying the paper piece sent out from the paper folding means, and a first piece for guiding the paper piece sent out from the paper folding means to the conveying means. , And a paper piece guide deflecting means that moves between a second position that opens the space between the paper folding means and the conveying means, and a state in which the paper piece guide deflecting means is moved to the first position. After pulling the leading end of the paper piece sent out from the paper folding means into the conveying means, the paper piece guide deflecting means is retracted to the second position, and the speed between the conveying means and the paper folding means is increased. After bending the paper piece between the conveying means and the paper folding means with a difference, the paper piece guide deflecting means is moved to the first position in a state where the conveyance of the paper piece is stopped, The specified part is the paper Ri also by providing a control means not to 3-fold the piece of paper with drawn into the means, can be achieved trifold with a small amount of movement.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a configuration of a paper piece folding device.

FIG. 2 is an operation explanatory diagram of a Z-folding mode.

FIG. 3 is an operation explanatory diagram of a Z-folding mode.

FIG. 4 is an operation explanatory diagram of a half-fold mode.

FIG. 5 is an explanatory diagram of an operation in a half-fold mode.

FIG. 6 is a flowchart of the operation of the paper sheet folding device.

FIG. 7 is a flowchart of a Z-folding operation of the paper piece folding device.

FIG. 8 is a flowchart of a half-folding operation of the paper piece folding device.

FIG. 9 is a configuration explanatory view of another embodiment of the paper piece folding device.

[Explanation of symbols]

 10 Paper Piece Folding Device 12 Feed Roller Pair 13 Paper Folding Roller Pair 16 Paper Piece Inlet Port 17 Paper Piece Guide Deflection Member 21 Processing Means

Claims (6)

[Claims] 1. A paper piece folding device for folding a supplied paper piece, a paper folding means for folding the supplied paper piece, and a paper folding means for stopping the conveyance of the paper piece when the paper folding means stops the conveyance during the paper folding operation. And a processing means for performing different processing, and a paper piece folding device. 2. A conveying means for conveying a piece of paper, a paper folding means for folding the piece of paper conveyed by the conveying means, and a first position for guiding the piece of paper conveyed from the conveying means to the paper folding means. , And a paper piece guide deflecting means that moves between a second position that opens between the conveying means and the paper folding means, and the paper piece guide deflecting means is moved to the first position. After pulling the leading end of the piece of paper conveyed by the conveying means into the paper folding means, the paper piece guide deflecting means is retracted to the second position, and a speed difference is generated between the conveying means and the paper folding means. The paper piece is bent and suspended between the conveying means and the paper folding means, and then the paper piece guide deflecting means is moved to the first position while the conveyance of the paper piece is stopped. Pull the part into the paper folding means Paper folding apparatus characterized by comprising a control means for trifold the paper. 3. Conveying means for conveying the paper pieces, paper folding means for folding the paper pieces conveyed by the conveying means, and a first position for guiding the paper pieces conveyed from the conveying means to the paper folding means. , And a paper piece guide deflecting means that moves between a second position that opens between the conveying means and the paper folding means, and the paper piece guide deflecting means is moved to the second position. After suspending the front end portion of the paper piece conveyed by the conveying means by a predetermined amount, the paper piece guide deflecting means is moved to the first position, and a predetermined portion of the paper piece is drawn into the paper folding means to fold the paper piece in two. A device for folding a piece of paper, comprising: 4. A conveying means for conveying a piece of paper, a paper folding means for folding the piece of paper conveyed by the conveying means, and a first position for guiding the piece of paper conveyed from the conveying means to the paper folding means. , And a paper piece guide deflecting means that moves between a second position that opens between the conveying means and the paper folding means, and the paper piece guide deflecting means is moved to the first position. After pulling the leading end of the piece of paper conveyed by the conveying means into the paper folding means, the paper piece guide deflecting means is retracted to the second position, and a speed difference is generated between the conveying means and the paper folding means. The paper piece is bent and suspended between the conveying means and the paper folding means, and then the paper piece guide deflecting means is moved to the first position while the conveyance of the paper piece is stopped. Pull the part into the paper folding means And 3-fold mode causes trifold the paper, in a state of moving the paper guide deflecting means to said second position,
After suspending the front end portion of the paper piece conveyed by the conveying means by a predetermined amount, the paper piece guide deflecting means is moved to the first position, and a predetermined portion of the paper piece is drawn into the paper folding means to make the paper piece 2 A paper piece folding device, comprising: a control unit having a two-fold mode for folding. 5. A paper folding means for folding the supplied paper piece, a conveying means for conveying the paper piece sent out from the paper folding means, and a first means for guiding the paper piece sent out from the paper folding means to the conveying means. And a sheet piece guide deflecting means that moves between a second position that opens the space between the paper folding means and the conveying means, and a state in which the sheet piece guide deflecting means is moved to the first position. After pulling the leading end of the paper piece sent out from the paper folding means into the conveying means, the paper piece guide deflecting means is retracted to the second position, and the speed between the conveying means and the paper folding means is increased. After bending the paper piece between the conveying means and the paper folding means with a difference, the paper piece guide deflecting means is moved to the first position in a state where the conveyance of the paper piece is stopped, The specified part is the paper folding Paper folding apparatus characterized by comprising retracted allowed by the control means for trifold the paper on. 6. A processing means for performing a process different from a folding process at a portion where the transportation of the paper piece is stopped when the paper piece is folded in three while the transportation of the paper piece is stopped. Alternatively, the paper piece folding device according to claim 4 or 5.